Change README to Markdown format, add LICENSE.txt (#6244)

4 files changed, 579 insertions, 562 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68808e41f..df5c00e08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -175,7 +175,8 @@ endif()
 
 install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/fonts" DESTINATION "${SHAREDIR}")
 
-install(FILES "README.txt" DESTINATION "${DOCDIR}")
+install(FILES "README.md" DESTINATION "${DOCDIR}")
+install(FILES "LICENSE.txt" DESTINATION "${DOCDIR}")
 install(FILES "doc/lua_api.txt" DESTINATION "${DOCDIR}")
 install(FILES "doc/menu_lua_api.txt" DESTINATION "${DOCDIR}")
 install(FILES "doc/texture_packs.txt" DESTINATION "${DOCDIR}")
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 000000000..8cf61c135
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,160 @@
+
+License of Minetest textures and sounds
+---------------------------------------
+
+This applies to textures and sounds contained in the main Minetest
+distribution.
+
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Authors of media files
+-----------------------
+Everything not listed in here:
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+ShadowNinja:
+  textures/base/pack/smoke_puff.png
+
+paramat:
+  textures/base/pack/menu_header.png
+
+erlehmann:
+  misc/minetest-icon-24x24.png
+  misc/minetest-icon.ico
+  misc/minetest.svg
+  textures/base/pack/logo.png
+
+JRottm
+  textures/base/pack/player_marker.png
+
+License of Minetest source code
+-------------------------------
+
+Minetest
+Copyright (C) 2010-2017 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Irrlicht
+---------------
+
+This program uses the Irrlicht Engine. http://irrlicht.sourceforge.net/
+
+ The Irrlicht Engine License
+
+Copyright © 2002-2005 Nikolaus Gebhardt
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute
+it freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you
+      must not claim that you wrote the original software. If you use
+	  this software in a product, an acknowledgment in the product
+	  documentation would be appreciated but is not required.
+   2. Altered source versions must be plainly marked as such, and must
+      not be misrepresented as being the original software.
+   3. This notice may not be removed or altered from any source
+      distribution.
+
+
+JThread
+---------------
+
+This program uses the JThread library. License for JThread follows:
+
+Copyright (c) 2000-2006  Jori Liesenborgs (jori.liesenborgs@gmail.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+
+Lua
+---------------
+
+Lua is licensed under the terms of the MIT license reproduced below.
+This means that Lua is free software and can be used for both academic
+and commercial purposes at absolutely no cost.
+
+For details and rationale, see https://www.lua.org/license.html .
+
+Copyright (C) 1994-2008 Lua.org, PUC-Rio.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+Fonts
+---------------
+
+Bitstream Vera Fonts Copyright:
+
+  Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
+  a trademark of Bitstream, Inc.
+
+Arimo - Apache License, version 2.0
+  Digitized data copyright (c) 2010-2012 Google Corporation.
+
+Cousine - Apache License, version 2.0
+  Digitized data copyright (c) 2010-2012 Google Corporation.
+
+DroidSansFallBackFull:
+
+  Copyright (C) 2008 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
diff --git a/README.md b/README.md
new file mode 100644
index 000000000..ecacbbd8a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,417 @@
+Minetest
+========
+
+[![Build Status](https://travis-ci.org/minetest/minetest.svg?branch=master)](https://travis-ci.org/minetest/minetest)
+[![Translation status](https://hosted.weblate.org/widgets/minetest/-/svg-badge.svg)](https://hosted.weblate.org/engage/minetest/?utm_source=widget)
+[![License](https://img.shields.io/badge/license-LGPLv2.1%2B-blue.svg)](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html)
+
+An InfiniMiner/Minecraft inspired game.
+
+Copyright (c) 2010-2017 Perttu Ahola <celeron55@gmail.com>
+and contributors (see source file comments and the version control log)
+
+In case you downloaded the source code:
+---------------------------------------
+If you downloaded the Minetest Engine source code in which this file is
+contained, you probably want to download the [Minetest Game](https://github.com/minetest/minetest_game/)
+project too. See its README.txt for more information.
+
+Further documentation
+----------------------
+- Website: http://minetest.net/
+- Wiki: http://wiki.minetest.net/
+- Developer wiki: http://dev.minetest.net/
+- Forum: http://forum.minetest.net/
+- Github: https://github.com/minetest/minetest/
+- doc/ directory of source distribution
+
+This game is not finished
+--------------------------
+- Don't expect it to work as well as a finished game will.
+- Please report any bugs. When doing that, debug.txt is useful.
+
+Default controls
+----------------
+
+All controls are re-bindable using settings.
+Some can be changes in the key config dialog in the settings tab.
+
+- Move mouse: Look around
+- W, A, S, D: Move
+- Space: Jump/move up
+- Shift: Sneak/move down
+- Q: Drop itemstack
+- Shift + Q: Drop single item
+- Left mouse button: Dig/punch/take item
+- Right mouse button: Place/use
+- Shift + right mouse button: Build (without using)
+- I: Inventory menu
+- Mouse wheel: Select item
+- 0-9: Select item
+- Z: Zoom (needs zoom privilege)
+- T: Chat
+- /: Command
+- Esc: Pause menu/abort/exit (pauses only singleplayer game)
+- R: Enable/disable full range view
+- +: Increase view range
+- -: Decrease view range
+- K: Enable/disable fly mode (needs fly privilege)
+- J: Enable/disable fast mode (needs fast privilege)
+- H: Enable/disable noclip mode (needs noclip privilege)
+- E: Move fast in fast mode
+- F1:  Hide/show HUD
+- F2:  Hide/show chat
+- F3:  Disable/enable fog
+- F4:  Disable/enable camera update (Mapblocks are not updated anymore when disabled, disabled in release builds)
+- F5:  Cycle through debug info screens
+- F6:  Cycle through profiler info screens
+- F7:  Cycle through camera modes
+- F8:  Toggle cinematic mode
+- F9:  Cycle through minimap modes
+- Shift + F9: Change minimap orientation
+- F10: Show/hide console
+- F12: Take screenshot
+- P: Write stack traces into debug.txt
+
+Paths
+-----
+
+Locations:
+
+* bin   - Compiled binaries
+* share - Distributed read-only data
+* user  - User-created modifiable data
+
+Where each location is on each platform:
+
+* Windows .zip / RUN_IN_PLACE source:
+    * bin   = bin
+    * share = .
+    * user  = .
+* Linux installed:
+    * bin   = /usr/bin
+    * share = /usr/share/minetest
+    * user  = ~/.minetest
+* macOS:
+    * bin   = Contents/MacOS
+    * share = Contents/Resources
+    * user  = Contents/User OR ~/Library/Application Support/minetest
+
+Worlds can be found as separate folders in: user/worlds/
+
+Configuration file:
+-------------------
+- Default location:
+    `user/minetest.conf`
+- It is created by Minetest when it is ran the first time.
+- A specific file can be specified on the command line:
+    `--config <path-to-file>`
+- A run-in-place build will look for the configuration file in
+    `location_of_exe/../minetest.conf` and also `location_of_exe/../../minetest.conf`
+
+Command-line options:
+---------------------
+- Use --help
+
+Compiling
+---------
+
+### Compiling on GNU/Linux
+
+Install dependencies. Here's an example for Debian/Ubuntu:
+
+    $ sudo apt-get install build-essential libirrlicht-dev cmake libbz2-dev libpng-dev libjpeg-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev libcurl4-gnutls-dev libfreetype6-dev zlib1g-dev libgmp-dev libjsoncpp-dev
+
+For Fedora users:
+
+    $ sudo dnf install make automake gcc gcc-c++ kernel-devel cmake libcurl* openal* libvorbis* libXxf86vm-devel libogg-devel freetype-devel mesa-libGL-devel zlib-devel jsoncpp-devel irrlicht-devel bzip2-libs gmp-devel sqlite-devel luajit-devel leveldb-devel ncurses-devel doxygen spatialindex-devel bzip2-devel
+
+You can install git for easily keeping your copy up to date.
+If you don’t want git, read below on how to get the source without git.  
+This is an example for installing git on Debian/Ubuntu:
+
+    $ sudo apt-get install git
+
+For Fedora users:
+
+    $ sudo dnf install git
+
+Download source (this is the URL to the latest of source repository, which might not work at all times) using git:
+
+    $ git clone --depth 1 https://github.com/minetest/minetest.git
+    $ cd minetest
+
+Download minetest_game (otherwise only the "Minimal development test" game is available) using git:
+
+    $ git clone --depth 1 https://github.com/minetest/minetest_game.git games/minetest_game
+
+Download source, without using git:
+
+    $ wget https://github.com/minetest/minetest/archive/master.tar.gz
+    $ tar xf master.tar.gz
+    $ cd minetest-master
+
+Download minetest_game, without using git:
+
+    $ cd games/
+    $ wget https://github.com/minetest/minetest_game/archive/master.tar.gz
+    $ tar xf master.tar.gz
+    $ mv minetest_game-master minetest_game
+    $ cd ..
+
+Build a version that runs directly from the source directory:
+
+    $ cmake . -DRUN_IN_PLACE=TRUE
+    $ make -j <number of processors>
+
+Run it:
+
+    $ ./bin/minetest
+
+- Use cmake . -LH to see all CMake options and their current state
+- If you want to install it system-wide (or are making a distribution package),
+  you will want to use -DRUN_IN_PLACE=FALSE
+- You can build a bare server by specifying -DBUILD_SERVER=TRUE
+- You can disable the client build by specifying -DBUILD_CLIENT=FALSE
+- You can select between Release and Debug build by -DCMAKE_BUILD_TYPE=<Debug or Release>
+  - Debug build is slower, but gives much more useful output in a debugger
+- If you build a bare server, you don't need to have Irrlicht installed.
+  In that case use -DIRRLICHT_SOURCE_DIR=/the/irrlicht/source
+
+### CMake options
+
+General options:
+
+    BUILD_CLIENT        - Build Minetest client
+    BUILD_SERVER        - Build Minetest server
+    CMAKE_BUILD_TYPE    - Type of build (Release vs. Debug)
+        Release         - Release build
+        Debug           - Debug build
+        SemiDebug       - Partially optimized debug build
+        RelWithDebInfo  - Release build with Debug information
+        MinSizeRel      - Release build with -Os passed to compiler to make executable as small as possible
+    ENABLE_CURL         - Build with cURL; Enables use of online mod repo, public serverlist and remote media fetching via http
+    ENABLE_CURSES       - Build with (n)curses; Enables a server side terminal (command line option: --terminal)
+    ENABLE_FREETYPE     - Build with FreeType2; Allows using TTF fonts
+    ENABLE_GETTEXT      - Build with Gettext; Allows using translations
+    ENABLE_GLES         - Search for Open GLES headers & libraries and use them
+    ENABLE_LEVELDB      - Build with LevelDB; Enables use of LevelDB map backend
+    ENABLE_POSTGRESQL   - Build with libpq; Enables use of PostgreSQL map backend (PostgreSQL 9.5 or greater recommended)
+    ENABLE_REDIS        - Build with libhiredis; Enables use of Redis map backend
+    ENABLE_SPATIAL      - Build with LibSpatial; Speeds up AreaStores
+    ENABLE_SOUND        - Build with OpenAL, libogg & libvorbis; in-game Sounds
+    ENABLE_LUAJIT       - Build with LuaJIT (much faster than non-JIT Lua)
+    ENABLE_SYSTEM_GMP   - Use GMP from system (much faster than bundled mini-gmp)
+    RUN_IN_PLACE        - Create a portable install (worlds, settings etc. in current directory)
+    USE_GPROF           - Enable profiling using GProf
+    VERSION_EXTRA       - Text to append to version (e.g. VERSION_EXTRA=foobar -> Minetest 0.4.9-foobar)
+
+Library specific options:
+    
+    BZIP2_INCLUDE_DIR               - Linux only; directory where bzlib.h is located
+    BZIP2_LIBRARY                   - Linux only; path to libbz2.a/libbz2.so
+    CURL_DLL                        - Only if building with cURL on Windows; path to libcurl.dll
+    CURL_INCLUDE_DIR                - Only if building with cURL; directory where curl.h is located
+    CURL_LIBRARY                    - Only if building with cURL; path to libcurl.a/libcurl.so/libcurl.lib
+    EGL_INCLUDE_DIR                 - Only if building with GLES; directory that contains egl.h
+    EGL_LIBRARY                     - Only if building with GLES; path to libEGL.a/libEGL.so
+    FREETYPE_INCLUDE_DIR_freetype2  - Only if building with Freetype2; directory that contains an freetype directory with files such as ftimage.h in it
+    FREETYPE_INCLUDE_DIR_ft2build   - Only if building with Freetype2; directory that contains ft2build.h
+    FREETYPE_LIBRARY                - Only if building with Freetype2; path to libfreetype.a/libfreetype.so/freetype.lib
+    FREETYPE_DLL                    - Only if building with Freetype2 on Windows; path to libfreetype.dll
+    GETTEXT_DLL                     - Only when building with Gettext on Windows; path to libintl3.dll
+    GETTEXT_ICONV_DLL               - Only when building with Gettext on Windows; path to libiconv2.dll
+    GETTEXT_INCLUDE_DIR             - Only when building with Gettext; directory that contains iconv.h
+    GETTEXT_LIBRARY                 - Only when building with Gettext on Windows; path to libintl.dll.a
+    GETTEXT_MSGFMT                  - Only when building with Gettext; path to msgfmt/msgfmt.exe
+    IRRLICHT_DLL                    - Only on Windows; path to Irrlicht.dll
+    IRRLICHT_INCLUDE_DIR            - Directory that contains IrrCompileConfig.h
+    IRRLICHT_LIBRARY                - Path to libIrrlicht.a/libIrrlicht.so/libIrrlicht.dll.a/Irrlicht.lib
+    LEVELDB_INCLUDE_DIR             - Only when building with LevelDB; directory that contains db.h
+    LEVELDB_LIBRARY                 - Only when building with LevelDB; path to libleveldb.a/libleveldb.so/libleveldb.dll.a
+    LEVELDB_DLL                     - Only when building with LevelDB on Windows; path to libleveldb.dll
+    PostgreSQL_INCLUDE_DIR          - Only when building with PostgreSQL; directory that contains libpq-fe.h
+    POSTGRESQL_LIBRARY              - Only when building with PostgreSQL; path to libpq.a/libpq.so
+    REDIS_INCLUDE_DIR               - Only when building with Redis; directory that contains hiredis.h
+    REDIS_LIBRARY                   - Only when building with Redis; path to libhiredis.a/libhiredis.so
+    SPATIAL_INCLUDE_DIR             - Only when building with LibSpatial; directory that contains spatialindex/SpatialIndex.h
+    SPATIAL_LIBRARY                 - Only when building with LibSpatial; path to libspatialindex_c.so/spatialindex-32.lib
+    LUA_INCLUDE_DIR                 - Only if you want to use LuaJIT; directory where luajit.h is located
+    LUA_LIBRARY                     - Only if you want to use LuaJIT; path to libluajit.a/libluajit.so
+    MINGWM10_DLL                    - Only if compiling with MinGW; path to mingwm10.dll
+    OGG_DLL                         - Only if building with sound on Windows; path to libogg.dll
+    OGG_INCLUDE_DIR                 - Only if building with sound; directory that contains an ogg directory which contains ogg.h
+    OGG_LIBRARY                     - Only if building with sound; path to libogg.a/libogg.so/libogg.dll.a
+    OPENAL_DLL                      - Only if building with sound on Windows; path to OpenAL32.dll
+    OPENAL_INCLUDE_DIR              - Only if building with sound; directory where al.h is located
+    OPENAL_LIBRARY                  - Only if building with sound; path to libopenal.a/libopenal.so/OpenAL32.lib
+    OPENGLES2_INCLUDE_DIR           - Only if building with GLES; directory that contains gl2.h
+    OPENGLES2_LIBRARY               - Only if building with GLES; path to libGLESv2.a/libGLESv2.so
+    SQLITE3_INCLUDE_DIR             - Directory that contains sqlite3.h
+    SQLITE3_LIBRARY                 - Path to libsqlite3.a/libsqlite3.so/sqlite3.lib
+    VORBISFILE_DLL                  - Only if building with sound on Windows; path to libvorbisfile-3.dll
+    VORBISFILE_LIBRARY              - Only if building with sound; path to libvorbisfile.a/libvorbisfile.so/libvorbisfile.dll.a
+    VORBIS_DLL                      - Only if building with sound on Windows; path to libvorbis-0.dll
+    VORBIS_INCLUDE_DIR              - Only if building with sound; directory that contains a directory vorbis with vorbisenc.h inside
+    VORBIS_LIBRARY                  - Only if building with sound; path to libvorbis.a/libvorbis.so/libvorbis.dll.a
+    XXF86VM_LIBRARY                 - Only on Linux; path to libXXf86vm.a/libXXf86vm.so
+    ZLIB_DLL                        - Only on Windows; path to zlib1.dll
+    ZLIBWAPI_DLL                    - Only on Windows; path to zlibwapi.dll
+    ZLIB_INCLUDE_DIR                - Directory that contains zlib.h
+    ZLIB_LIBRARY                    - Path to libz.a/libz.so/zlibwapi.lib
+
+### Compiling on Windows
+
+* This section is outdated. In addition to what is described here:
+  * In addition to minetest, you need to download minetest_game.
+  * If you wish to have sound support, you need libogg, libvorbis and libopenal
+  
+* You need:
+	* CMake:
+		http://www.cmake.org/cmake/resources/software.html
+	* A compiler
+		* MinGW: http://www.mingw.org/
+		* or Visual Studio: http://msdn.microsoft.com/en-us/vstudio/default
+	* Irrlicht SDK 1.7:
+		http://irrlicht.sourceforge.net/downloads.html
+	* Zlib headers (zlib125.zip)
+		http://www.winimage.com/zLibDll/index.html
+	* Zlib library (zlibwapi.lib and zlibwapi.dll from zlib125dll.zip):
+		http://www.winimage.com/zLibDll/index.html
+	* SQLite3 headers and library
+		https://www.sqlite.org/download.html
+	* Optional: gettext library and tools:
+		http://gnuwin32.sourceforge.net/downlinks/gettext.php
+		* This is used for other UI languages. Feel free to leave it out.
+	* And, of course, Minetest:
+		http://minetest.net/download
+* Steps:
+	* Select a directory called DIR hereafter in which you will operate.
+	* Make sure you have CMake and a compiler installed.
+	* Download all the other stuff to DIR and extract them into there.
+	  ("extract here", not "extract to packagename/")
+	    * NOTE: zlib125dll.zip needs to be extracted into zlib125dll
+	    * NOTE: You need to extract sqlite3.h & sqlite3ext.h from sqlite3 source
+	      and sqlite3.dll & sqlite3.def from sqlite3 precompiled binaries
+	      into "sqlite3" directory, and generate sqlite3.lib using command
+	      "LIB /DEF:sqlite3.def /OUT:sqlite3.lib"
+	* All those packages contain a nice base directory in them, which
+	  should end up being the direct subdirectories of DIR.
+	* You will end up with a directory structure like this (+=dir, -=file):
+	-----------------
+	+ DIR
+		* zlib-1.2.5.tar.gz
+		* zlib125dll.zip
+		* irrlicht-1.8.3.zip
+		* sqlite-amalgamation-3130000.zip (SQLite3 headers)
+		* sqlite-dll-win32-x86-3130000.zip (SQLite3 library for 32bit system)
+		* 110214175330.zip (or whatever, this is the minetest source)
+		+ zlib-1.2.5
+			* zlib.h
+			+ win32
+			...
+		+ zlib125dll
+			* readme.txt
+			+ dll32
+			...
+		+ irrlicht-1.8.3
+			+ lib
+			+ include
+			...
+		+ sqlite3
+			sqlite3.h
+			sqlite3ext.h
+			sqlite3.lib
+			sqlite3.dll
+		+ gettext (optional)
+			+bin
+			+include
+			+lib
+		+ minetest
+			+ src
+			+ doc
+			* CMakeLists.txt
+			...
+	-----------------
+	* Start up the CMake GUI
+	* Select "Browse Source..." and select DIR/minetest
+	* Now, if using MSVC:
+		* Select "Browse Build..." and select DIR/minetest-build
+	* Else if using MinGW:
+		* Select "Browse Build..." and select DIR/minetest
+	* Select "Configure"
+	* Select your compiler
+	* It will warn about missing stuff, ignore that at this point. (later don't)
+	* Make sure the configuration is as follows
+	  (note that the versions may differ for you):
+	  
+                BUILD_CLIENT             [X]
+                BUILD_SERVER             [ ]
+                CMAKE_BUILD_TYPE         Release
+                CMAKE_INSTALL_PREFIX     DIR/minetest-install
+                IRRLICHT_SOURCE_DIR      DIR/irrlicht-1.8.3
+                RUN_IN_PLACE             [X]
+                WARN_ALL                 [ ]
+                ZLIB_DLL                 DIR/zlib125dll/dll32/zlibwapi.dll
+                ZLIB_INCLUDE_DIR         DIR/zlib-1.2.5
+                ZLIB_LIBRARIES           DIR/zlib125dll/dll32/zlibwapi.lib
+                GETTEXT_BIN_DIR          DIR/gettext/bin
+                GETTEXT_INCLUDE_DIR      DIR/gettext/include
+                GETTEXT_LIBRARIES        DIR/gettext/lib/intl.lib
+                GETTEXT_MSGFMT           DIR/gettext/bin/msgfmt
+	
+	* If CMake complains it couldn't find SQLITE3, choose "Advanced" box on the
+	  right top corner, then specify the location of SQLITE3_INCLUDE_DIR and
+	  SQLITE3_LIBRARY manually.
+	* If you want to build 64-bit minetest, you will need to build 64-bit version
+	  of irrlicht engine manually, as only 32-bit pre-built library is provided.
+	* Hit "Configure"
+	* Hit "Configure" once again 8)
+	* If something is still coloured red, you have a problem.
+	* Hit "Generate"
+	If using MSVC:
+		* Open the generated minetest.sln
+		* The project defaults to the "Debug" configuration. Make very sure to
+		  select "Release", unless you want to debug some stuff (it's slower
+		  and might not even work at all)
+		* Build the ALL_BUILD project
+		* Build the INSTALL project
+		* You should now have a working game with the executable in
+			DIR/minetest-install/bin/minetest.exe
+		* Additionally you may create a zip package by building the PACKAGE
+		  project.
+	If using MinGW:
+		* Using the command line, browse to the build directory and run 'make'
+		  (or mingw32-make or whatever it happens to be)
+		* You may need to copy some of the downloaded DLLs into bin/, see what
+		  running the produced executable tells you it doesn't have.
+		* You should now have a working game with the executable in
+			DIR/minetest/bin/minetest.exe
+
+### Bat script to build Windows releases of Minetest
+
+This is how we build Windows releases.
+
+    set sourcedir=%CD%
+    set installpath="C:\tmp\minetest_install"
+    set irrlichtpath="C:\tmp\irrlicht-1.7.2"
+    
+    set builddir=%sourcedir%\bvc10
+    mkdir %builddir%
+    pushd %builddir%
+    cmake %sourcedir% -G "Visual Studio 10" -DIRRLICHT_SOURCE_DIR=%irrlichtpath% -DRUN_IN_PLACE=TRUE -DCMAKE_INSTALL_PREFIX=%installpath%
+    if %errorlevel% neq 0 goto fail
+    "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" ALL_BUILD.vcxproj /p:Configuration=Release
+    if %errorlevel% neq 0 goto fail
+    "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" INSTALL.vcxproj /p:Configuration=Release
+    if %errorlevel% neq 0 goto fail
+    "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" PACKAGE.vcxproj /p:Configuration=Release
+    if %errorlevel% neq 0 goto fail
+    popd
+    echo Finished.
+    exit /b 0
+    
+    :fail
+    popd
+    echo Failed.
+    exit /b 1
diff --git a/README.txt b/README.txt
deleted file mode 100644
index ee1558897..000000000
--- a/README.txt
+++ /dev/null
@@ -1,561 +0,0 @@
-Minetest
-========
-
-An InfiniMiner/Minecraft inspired game.
-
-Copyright (c) 2010-2017 Perttu Ahola <celeron55@gmail.com>
-and contributors (see source file comments and the version control log)
-
-In case you downloaded the source code:
----------------------------------------
-If you downloaded the Minetest Engine source code in which this file is
-contained, you probably want to download the minetest_game project too:
-  https://github.com/minetest/minetest_game/
-See the README.txt in it.
-
-Further documentation
-----------------------
-- Website: http://minetest.net/
-- Wiki: http://wiki.minetest.net/
-- Developer wiki: http://dev.minetest.net/
-- Forum: http://forum.minetest.net/
-- Github: https://github.com/minetest/minetest/
-- doc/ directory of source distribution
-
-This game is not finished
---------------------------
-- Don't expect it to work as well as a finished game will.
-- Please report any bugs. When doing that, debug.txt is useful.
-
-Default controls
------------------
-- Move mouse: Look around
-- W, A, S, D: Move
-- Space: Jump/move up
-- Shift: Sneak/move down
-- Q: Drop itemstack
-- Shift + Q: Drop single item
-- Left mouse button: Dig/punch/take item
-- Right mouse button: Place/use
-- Shift + right mouse button: Build (without using)
-- I: Inventory menu
-- Mouse wheel: Select item
-- 0-9: Select item
-- Z: Zoom (needs zoom privilege)
-- T: Chat
-- /: Command
-
-- Esc: Pause menu/abort/exit (pauses only singleplayer game)
-- R: Enable/disable full range view
-- +: Increase view range
-- -: Decrease view range
-- K: Enable/disable fly mode (needs fly privilege)
-- J: Enable/disable fast mode (needs fast privilege)
-- E: Move fast in fast mode
-- H: Enable/disable noclip mode (needs noclip privilege)
-
-- F1:  Hide/show HUD
-- F2:  Hide/show chat
-- F3:  Disable/enable fog
-- F4:  Disable/enable camera update (Mapblocks are not updated anymore when disabled, disabled in release builds)
-- F5:  Cycle through debug info screens
-- F6:  Cycle through profiler info screens
-- F7:  Cycle through camera modes
-- F8:  Toggle cinematic mode
-- F9:  Cycle through minimap modes
-- Shift + F9: Change minimap orientation
-- F10: Show/hide console
-- F12: Take screenshot
-- P: Write stack traces into debug.txt
-
-Most controls are settable in the configuration file, see the section below.
-
-Paths
-------
-$bin   - Compiled binaries
-$share - Distributed read-only data
-$user  - User-created modifiable data
-
-Windows .zip / RUN_IN_PLACE source:
-$bin   = bin
-$share = .
-$user  = .
-
-Linux installed:
-$bin   = /usr/bin
-$share = /usr/share/minetest
-$user  = ~/.minetest
-
-macOS:
-$bin   = Contents/MacOS
-$share = Contents/Resources
-$user  = Contents/User OR ~/Library/Application Support/minetest
-
-World directory
-----------------
-- Worlds can be found as separate folders in:
-    $user/worlds/
-
-Configuration file:
--------------------
-- Default location:
-    $user/minetest.conf
-- It is created by Minetest when it is ran the first time.
-- A specific file can be specified on the command line:
-    --config <path-to-file>
-- A run-in-place build will look for the configuration file in
-    $location_of_exe/../minetest.conf and also $location_of_exe/../../minetest.conf
-
-Command-line options:
----------------------
-- Use --help
-
-Compiling on GNU/Linux:
------------------------
-
-Install dependencies. Here's an example for Debian/Ubuntu:
-$ sudo apt-get install build-essential libirrlicht-dev cmake libbz2-dev libpng-dev libjpeg-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev libcurl4-gnutls-dev libfreetype6-dev zlib1g-dev libgmp-dev libjsoncpp-dev
-
-For Fedora users:
-$ sudo dnf install make automake gcc gcc-c++ kernel-devel cmake libcurl* openal* libvorbis* libXxf86vm-devel libogg-devel freetype-devel mesa-libGL-devel zlib-devel jsoncpp-devel irrlicht-devel bzip2-libs gmp-devel sqlite-devel luajit-devel leveldb-devel ncurses-devel doxygen spatialindex-devel bzip2-devel
-
-You can install git for easily keeping your copy up to date.
-If you don’t want git, read below on how to get the source without git.
-This is an example for installing git on Debian/Ubuntu:
-$ sudo apt-get install git
-
-For Fedora users:
-$ sudo dnf install git
-
-Download source (this is the URL to the latest of source repository, which might not work at all times) using git:
-$ git clone --depth 1 https://github.com/minetest/minetest.git
-$ cd minetest
-
-Download minetest_game (otherwise only the "Minimal development test" game is available) using git:
-$ git clone --depth 1 https://github.com/minetest/minetest_game.git games/minetest_game
-
-Download source, without using git:
-$ wget https://github.com/minetest/minetest/archive/master.tar.gz
-$ tar xf master.tar.gz
-$ cd minetest-master
-
-Download minetest_game, without using git:
-$ cd games/
-$ wget https://github.com/minetest/minetest_game/archive/master.tar.gz
-$ tar xf master.tar.gz
-$ mv minetest_game-master minetest_game
-$ cd ..
-
-Build a version that runs directly from the source directory:
-$ cmake . -DRUN_IN_PLACE=TRUE
-$ make -j <number of processors>
-
-Run it:
-$ ./bin/minetest
-
-- Use cmake . -LH to see all CMake options and their current state
-- If you want to install it system-wide (or are making a distribution package),
-  you will want to use -DRUN_IN_PLACE=FALSE
-- You can build a bare server by specifying -DBUILD_SERVER=TRUE
-- You can disable the client build by specifying -DBUILD_CLIENT=FALSE
-- You can select between Release and Debug build by -DCMAKE_BUILD_TYPE=<Debug or Release>
-  - Debug build is slower, but gives much more useful output in a debugger
-- If you build a bare server, you don't need to have Irrlicht installed.
-  In that case use -DIRRLICHT_SOURCE_DIR=/the/irrlicht/source
-
-CMake options
--------------
-General options:
-
-BUILD_CLIENT        - Build Minetest client
-BUILD_SERVER        - Build Minetest server
-CMAKE_BUILD_TYPE    - Type of build (Release vs. Debug)
-    Release         - Release build
-    Debug           - Debug build
-    SemiDebug       - Partially optimized debug build
-    RelWithDebInfo  - Release build with Debug information
-    MinSizeRel      - Release build with -Os passed to compiler to make executable as small as possible
-ENABLE_CURL         - Build with cURL; Enables use of online mod repo, public serverlist and remote media fetching via http
-ENABLE_CURSES       - Build with (n)curses; Enables a server side terminal (command line option: --terminal)
-ENABLE_FREETYPE     - Build with FreeType2; Allows using TTF fonts
-ENABLE_GETTEXT      - Build with Gettext; Allows using translations
-ENABLE_GLES         - Search for Open GLES headers & libraries and use them
-ENABLE_LEVELDB      - Build with LevelDB; Enables use of LevelDB map backend
-ENABLE_POSTGRESQL   - Build with libpq; Enables use of PostgreSQL map backend (PostgreSQL 9.5 or greater recommended)
-ENABLE_REDIS        - Build with libhiredis; Enables use of Redis map backend
-ENABLE_SPATIAL      - Build with LibSpatial; Speeds up AreaStores
-ENABLE_SOUND        - Build with OpenAL, libogg & libvorbis; in-game Sounds
-ENABLE_LUAJIT       - Build with LuaJIT (much faster than non-JIT Lua)
-ENABLE_SYSTEM_GMP   - Use GMP from system (much faster than bundled mini-gmp)
-RUN_IN_PLACE        - Create a portable install (worlds, settings etc. in current directory)
-USE_GPROF           - Enable profiling using GProf
-VERSION_EXTRA       - Text to append to version (e.g. VERSION_EXTRA=foobar -> Minetest 0.4.9-foobar)
-
-Library specific options:
-
-BZIP2_INCLUDE_DIR               - Linux only; directory where bzlib.h is located
-BZIP2_LIBRARY                   - Linux only; path to libbz2.a/libbz2.so
-CURL_DLL                        - Only if building with cURL on Windows; path to libcurl.dll
-CURL_INCLUDE_DIR                - Only if building with cURL; directory where curl.h is located
-CURL_LIBRARY                    - Only if building with cURL; path to libcurl.a/libcurl.so/libcurl.lib
-EGL_INCLUDE_DIR                 - Only if building with GLES; directory that contains egl.h
-EGL_LIBRARY                     - Only if building with GLES; path to libEGL.a/libEGL.so
-FREETYPE_INCLUDE_DIR_freetype2  - Only if building with Freetype2; directory that contains an freetype directory with files such as ftimage.h in it
-FREETYPE_INCLUDE_DIR_ft2build   - Only if building with Freetype2; directory that contains ft2build.h
-FREETYPE_LIBRARY                - Only if building with Freetype2; path to libfreetype.a/libfreetype.so/freetype.lib
-FREETYPE_DLL                    - Only if building with Freetype2 on Windows; path to libfreetype.dll
-GETTEXT_DLL                     - Only when building with Gettext on Windows; path to libintl3.dll
-GETTEXT_ICONV_DLL               - Only when building with Gettext on Windows; path to libiconv2.dll
-GETTEXT_INCLUDE_DIR             - Only when building with Gettext; directory that contains iconv.h
-GETTEXT_LIBRARY                 - Only when building with Gettext on Windows; path to libintl.dll.a
-GETTEXT_MSGFMT                  - Only when building with Gettext; path to msgfmt/msgfmt.exe
-IRRLICHT_DLL                    - Only on Windows; path to Irrlicht.dll
-IRRLICHT_INCLUDE_DIR            - Directory that contains IrrCompileConfig.h
-IRRLICHT_LIBRARY                - Path to libIrrlicht.a/libIrrlicht.so/libIrrlicht.dll.a/Irrlicht.lib
-LEVELDB_INCLUDE_DIR             - Only when building with LevelDB; directory that contains db.h
-LEVELDB_LIBRARY                 - Only when building with LevelDB; path to libleveldb.a/libleveldb.so/libleveldb.dll.a
-LEVELDB_DLL                     - Only when building with LevelDB on Windows; path to libleveldb.dll
-PostgreSQL_INCLUDE_DIR          - Only when building with PostgreSQL; directory that contains libpq-fe.h
-POSTGRESQL_LIBRARY              - Only when building with PostgreSQL; path to libpq.a/libpq.so
-REDIS_INCLUDE_DIR               - Only when building with Redis; directory that contains hiredis.h
-REDIS_LIBRARY                   - Only when building with Redis; path to libhiredis.a/libhiredis.so
-SPATIAL_INCLUDE_DIR             - Only when building with LibSpatial; directory that contains spatialindex/SpatialIndex.h
-SPATIAL_LIBRARY                 - Only when building with LibSpatial; path to libspatialindex_c.so/spatialindex-32.lib
-LUA_INCLUDE_DIR                 - Only if you want to use LuaJIT; directory where luajit.h is located
-LUA_LIBRARY                     - Only if you want to use LuaJIT; path to libluajit.a/libluajit.so
-MINGWM10_DLL                    - Only if compiling with MinGW; path to mingwm10.dll
-OGG_DLL                         - Only if building with sound on Windows; path to libogg.dll
-OGG_INCLUDE_DIR                 - Only if building with sound; directory that contains an ogg directory which contains ogg.h
-OGG_LIBRARY                     - Only if building with sound; path to libogg.a/libogg.so/libogg.dll.a
-OPENAL_DLL                      - Only if building with sound on Windows; path to OpenAL32.dll
-OPENAL_INCLUDE_DIR              - Only if building with sound; directory where al.h is located
-OPENAL_LIBRARY                  - Only if building with sound; path to libopenal.a/libopenal.so/OpenAL32.lib
-OPENGLES2_INCLUDE_DIR           - Only if building with GLES; directory that contains gl2.h
-OPENGLES2_LIBRARY               - Only if building with GLES; path to libGLESv2.a/libGLESv2.so
-SQLITE3_INCLUDE_DIR             - Directory that contains sqlite3.h
-SQLITE3_LIBRARY                 - Path to libsqlite3.a/libsqlite3.so/sqlite3.lib
-VORBISFILE_DLL                  - Only if building with sound on Windows; path to libvorbisfile-3.dll
-VORBISFILE_LIBRARY              - Only if building with sound; path to libvorbisfile.a/libvorbisfile.so/libvorbisfile.dll.a
-VORBIS_DLL                      - Only if building with sound on Windows; path to libvorbis-0.dll
-VORBIS_INCLUDE_DIR              - Only if building with sound; directory that contains a directory vorbis with vorbisenc.h inside
-VORBIS_LIBRARY                  - Only if building with sound; path to libvorbis.a/libvorbis.so/libvorbis.dll.a
-XXF86VM_LIBRARY                 - Only on Linux; path to libXXf86vm.a/libXXf86vm.so
-ZLIB_DLL                        - Only on Windows; path to zlib1.dll
-ZLIBWAPI_DLL                    - Only on Windows; path to zlibwapi.dll
-ZLIB_INCLUDE_DIR                - Directory that contains zlib.h
-ZLIB_LIBRARY                    - Path to libz.a/libz.so/zlibwapi.lib
-
-Compiling on Windows:
----------------------
-- This section is outdated. In addition to what is described here:
-  - In addition to minetest, you need to download minetest_game.
-  - If you wish to have sound support, you need libogg, libvorbis and libopenal
-
-- You need:
-	* CMake:
-		http://www.cmake.org/cmake/resources/software.html
-	* MinGW or Visual Studio
-		http://www.mingw.org/
-		http://msdn.microsoft.com/en-us/vstudio/default
-	* Irrlicht SDK 1.7:
-		http://irrlicht.sourceforge.net/downloads.html
-	* Zlib headers (zlib125.zip)
-		http://www.winimage.com/zLibDll/index.html
-	* Zlib library (zlibwapi.lib and zlibwapi.dll from zlib125dll.zip):
-		http://www.winimage.com/zLibDll/index.html
-	* SQLite3 headers and library
-		https://www.sqlite.org/download.html
-	* Optional: gettext library and tools:
-		http://gnuwin32.sourceforge.net/downlinks/gettext.php
-		- This is used for other UI languages. Feel free to leave it out.
-	* And, of course, Minetest:
-		http://minetest.net/download
-- Steps:
-	- Select a directory called DIR hereafter in which you will operate.
-	- Make sure you have CMake and a compiler installed.
-	- Download all the other stuff to DIR and extract them into there.
-	  ("extract here", not "extract to packagename/")
-	  NOTE: zlib125dll.zip needs to be extracted into zlib125dll
-	  NOTE: You need to extract sqlite3.h & sqlite3ext.h from sqlite3 source
-	      and sqlite3.dll & sqlite3.def from sqlite3 precompiled binaries
-	      into "sqlite3" directory, and generate sqlite3.lib using command
-	      "LIB /DEF:sqlite3.def /OUT:sqlite3.lib"
-	- All those packages contain a nice base directory in them, which
-	  should end up being the direct subdirectories of DIR.
-	- You will end up with a directory structure like this (+=dir, -=file):
-	-----------------
-	+ DIR
-		- zlib-1.2.5.tar.gz
-		- zlib125dll.zip
-		- irrlicht-1.8.3.zip
-		- sqlite-amalgamation-3130000.zip (SQLite3 headers)
-		- sqlite-dll-win32-x86-3130000.zip (SQLite3 library for 32bit system)
-		- 110214175330.zip (or whatever, this is the minetest source)
-		+ zlib-1.2.5
-			- zlib.h
-			+ win32
-			...
-		+ zlib125dll
-			- readme.txt
-			+ dll32
-			...
-		+ irrlicht-1.8.3
-			+ lib
-			+ include
-			...
-		+ sqlite3
-			sqlite3.h
-			sqlite3ext.h
-			sqlite3.lib
-			sqlite3.dll
-		+ gettext (optional)
-			+bin
-			+include
-			+lib
-		+ minetest
-			+ src
-			+ doc
-			- CMakeLists.txt
-			...
-	-----------------
-	- Start up the CMake GUI
-	- Select "Browse Source..." and select DIR/minetest
-	- Now, if using MSVC:
-		- Select "Browse Build..." and select DIR/minetest-build
-	- Else if using MinGW:
-		- Select "Browse Build..." and select DIR/minetest
-	- Select "Configure"
-	- Select your compiler
-	- It will warn about missing stuff, ignore that at this point. (later don't)
-	- Make sure the configuration is as follows
-	  (note that the versions may differ for you):
-	-----------------
-	BUILD_CLIENT             [X]
-	BUILD_SERVER             [ ]
-	CMAKE_BUILD_TYPE         Release
-	CMAKE_INSTALL_PREFIX     DIR/minetest-install
-	IRRLICHT_SOURCE_DIR      DIR/irrlicht-1.8.3
-	RUN_IN_PLACE             [X]
-	WARN_ALL                 [ ]
-	ZLIB_DLL                 DIR/zlib125dll/dll32/zlibwapi.dll
-	ZLIB_INCLUDE_DIR         DIR/zlib-1.2.5
-	ZLIB_LIBRARIES           DIR/zlib125dll/dll32/zlibwapi.lib
-	GETTEXT_BIN_DIR          DIR/gettext/bin
-	GETTEXT_INCLUDE_DIR      DIR/gettext/include
-	GETTEXT_LIBRARIES        DIR/gettext/lib/intl.lib
-	GETTEXT_MSGFMT           DIR/gettext/bin/msgfmt
-	-----------------
-	- If CMake complains it couldn't find SQLITE3, choose "Advanced" box on the
-	  right top corner, then specify the location of SQLITE3_INCLUDE_DIR and
-	  SQLITE3_LIBRARY manually.
-	- If you want to build 64-bit minetest, you will need to build 64-bit version
-	  of irrlicht engine manually, as only 32-bit pre-built library is provided.
-	- Hit "Configure"
-	- Hit "Configure" once again 8)
-	- If something is still coloured red, you have a problem.
-	- Hit "Generate"
-	If using MSVC:
-		- Open the generated minetest.sln
-		- The project defaults to the "Debug" configuration. Make very sure to
-		  select "Release", unless you want to debug some stuff (it's slower
-		  and might not even work at all)
-		- Build the ALL_BUILD project
-		- Build the INSTALL project
-		- You should now have a working game with the executable in
-			DIR/minetest-install/bin/minetest.exe
-		- Additionally you may create a zip package by building the PACKAGE
-		  project.
-	If using MinGW:
-		- Using the command line, browse to the build directory and run 'make'
-		  (or mingw32-make or whatever it happens to be)
-		- You may need to copy some of the downloaded DLLs into bin/, see what
-		  running the produced executable tells you it doesn't have.
-		- You should now have a working game with the executable in
-			DIR/minetest/bin/minetest.exe
-
-Windows releases of minetest are built using a bat script like this:
---------------------------------------------------------------------
-
-set sourcedir=%CD%
-set installpath="C:\tmp\minetest_install"
-set irrlichtpath="C:\tmp\irrlicht-1.7.2"
-
-set builddir=%sourcedir%\bvc10
-mkdir %builddir%
-pushd %builddir%
-cmake %sourcedir% -G "Visual Studio 10" -DIRRLICHT_SOURCE_DIR=%irrlichtpath% -DRUN_IN_PLACE=TRUE -DCMAKE_INSTALL_PREFIX=%installpath%
-if %errorlevel% neq 0 goto fail
-"C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" ALL_BUILD.vcxproj /p:Configuration=Release
-if %errorlevel% neq 0 goto fail
-"C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" INSTALL.vcxproj /p:Configuration=Release
-if %errorlevel% neq 0 goto fail
-"C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" PACKAGE.vcxproj /p:Configuration=Release
-if %errorlevel% neq 0 goto fail
-popd
-echo Finished.
-exit /b 0
-
-:fail
-popd
-echo Failed.
-exit /b 1
-
-License of Minetest textures and sounds
----------------------------------------
-
-This applies to textures and sounds contained in the main Minetest
-distribution.
-
-Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
-http://creativecommons.org/licenses/by-sa/3.0/
-
-Authors of media files
------------------------
-Everything not listed in here:
-Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
-
-ShadowNinja:
-  textures/base/pack/smoke_puff.png
-
-paramat:
-  textures/base/pack/menu_header.png
-
-erlehmann:
-  misc/minetest-icon-24x24.png
-  misc/minetest-icon.ico
-  misc/minetest.svg
-  textures/base/pack/logo.png
-
-JRottm
-  textures/base/pack/player_marker.png
-
-License of Minetest source code
--------------------------------
-
-Minetest
-Copyright (C) 2010-2017 celeron55, Perttu Ahola <celeron55@gmail.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-Irrlicht
----------------
-
-This program uses the Irrlicht Engine. http://irrlicht.sourceforge.net/
-
- The Irrlicht Engine License
-
-Copyright © 2002-2005 Nikolaus Gebhardt
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute
-it freely, subject to the following restrictions:
-
-   1. The origin of this software must not be misrepresented; you
-      must not claim that you wrote the original software. If you use
-	  this software in a product, an acknowledgment in the product
-	  documentation would be appreciated but is not required.
-   2. Altered source versions must be plainly marked as such, and must
-      not be misrepresented as being the original software.
-   3. This notice may not be removed or altered from any source
-      distribution.
-
-
-JThread
----------------
-
-This program uses the JThread library. License for JThread follows:
-
-Copyright (c) 2000-2006  Jori Liesenborgs (jori.liesenborgs@gmail.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-IN THE SOFTWARE.
-
-Lua
----------------
-
-Lua is licensed under the terms of the MIT license reproduced below.
-This means that Lua is free software and can be used for both academic
-and commercial purposes at absolutely no cost.
-
-For details and rationale, see https://www.lua.org/license.html .
-
-Copyright (C) 1994-2008 Lua.org, PUC-Rio.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-Fonts
----------------
-
-Bitstream Vera Fonts Copyright:
-
-  Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
-  a trademark of Bitstream, Inc.
-
-Arimo - Apache License, version 2.0
-  Digitized data copyright (c) 2010-2012 Google Corporation.
-
-Cousine - Apache License, version 2.0
-  Digitized data copyright (c) 2010-2012 Google Corporation.
-
-DroidSansFallBackFull:
-
-  Copyright (C) 2008 The Android Open Source Project
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.