Update Other License.txt

doc/Other License.txt

@@ -1,3 +1,46 @@
+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>
+
+BlockMen:
+  textures/base/pack/menuheader.png
+
+erlehmann:
+  misc/minetest-icon-24x24.png
+  misc/minetest-icon.ico
+  misc/minetest.svg
+  textures/base/pack/logo.png
+
+License of Minetest source code
+-------------------------------
+
+Minetest
+Copyright (C) 2010-2013 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
 ---------------