Copyright license text for Lua 5 and the Mersenne Twister.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/branches/stone_soup@103 c06c8d41-db1a-0410-9941-cceddc491573

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diff --git a/crawl-ref/docs/lualicense.txt b/crawl-ref/docs/lualicense.txt
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+Lua 5.0 license

+Copyright © 1994-2005 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. 

+

diff --git a/crawl-ref/docs/mt19937.txt b/crawl-ref/docs/mt19937.txt
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+A C-program for MT19937, with initialization improved 2002/1/26.
+Coded by Takuji Nishimura and Makoto Matsumoto.
+
+Before using, initialize the state by using init_genrand(seed)  
+or init_by_array(init_key, key_length).
+
+Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
+All rights reserved.                          
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  3. The names of its contributors may not be used to endorse or promote 
+     products derived from this software without specific prior written 
+     permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Any feedback is very welcome.
+http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
+email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)