NOTE: ScummVM uses code from Lua, which is covered by the following license.
This implementation of Lua contains additional code and modifications added
only for ScummVM project.
Look into the source code file "engines/grim/lua/Changelog" for more info.

/******************************************************************************
* Copyright (c) 1994-1998 TeCGraf, PUC-Rio.  All rights reserved.
*
* Permission is hereby granted, without written agreement and without license
* or royalty fees, to use, copy, modify, and distribute this software and its
* documentation for any purpose, including commercial applications, subject to
* the following conditions:
*
*  - The above copyright notice and this permission notice shall appear in all
*    copies or substantial portions of this software.
*
*  - 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 greatly
*    appreciated (but it is not required).
*
*  - Altered source versions must be plainly marked as such, and must not be
*    misrepresented as being the original software.
*
* The authors specifically disclaim any warranties, including, but not limited
* to, the implied warranties of merchantability and fitness for a particular
* purpose.  The software provided hereunder is on an "as is" basis, and the
* authors have no obligation to provide maintenance, support, updates,
* enhancements, or modifications.  In no event shall TeCGraf, PUC-Rio, or the
* authors be held liable to any party for direct, indirect, special,
* incidental, or consequential damages arising out of the use of this software
* and its documentation.
*
* The Lua language and this implementation have been entirely designed and
* written by Waldemar Celes Filho, Roberto Ierusalimschy and
* Luiz Henrique de Figueiredo at TeCGraf, PUC-Rio.
*
******************************************************************************/