- alternative configuration using GLEW to get extension functions. This requires GL 2.0, though so it won't be promoted to the mainline for the time being.
- removed all pre GL 2.0 support.
Merge branch 'master' into GLEW_VERSION
- got rid of a lot of stuff that's no longer required with GLEW.
- replaced GLUs texture scaling with our own function. This is only used to scale down textures larger than what the hardware can handle so we do not need a dependency to an essentially deprecated library for it.
Merge branch 'master' into GLEW_VERSION
Fixed crash on attempt to load corrupted data file

Instance of FileReader is no longer destructed when header of data file is valid but complete loading of file fails
Loading of truncated .zip file is the simplest test case
Added simple check for unsupported compression method in .7z files
Added support for LZMA2 compression method in .7z archives

Updated LZMA SDK to version 9.20
http://www.7-zip.org/sdk.html
http://downloads.sourceforge.net/sevenzip/lzma920.tar.bz2
- added constants for sound channels 5-7.
Fixed file list in VS2005 project of LZMA library
Fixed compilation with updated LZMA library using Visual Studio
Merge branch 'master' of https://github.com/rheit/zdoom into lzma2
Merge branch 'master' of https://github.com/rheit/zdoom
- don't depend on stdint.h because older MSVC versions do not have it.
Added static RNGseed control
Don't change RNG in demos incase they are static
Make sure use_staticrng is false if not needed
Merge branch 'upstream' of https://github.com/Edward850/zdoom
- fixed: since A_LightGoesOut alters a sector's floor plane it must also alter the TexZ for that sector's floor.
Merge branch 'master' of https://github.com/rheit/zdoom
fixed some issues with reviving monsters

- fixed: Thing_Raise didn't properly set the spawn health.
- fixed: Thing_Raise did not the CanRaise state flag.
- fixed: Reviving a monster must also reset the damage type.
- fixed: Thing_Raise reset the actor after calling the raise state, but it should be before, just as the Archvile code is doing.
- consolidated some common code of Thing_Raise and Archvile resurrection into AActor methods.