Replaced QGL with GLEW.
Merge branch 'master' into glew
Merge branch 'master' into glew
Merge branch 'master' into glew and fixed a crash on Intel HD drivers
Merge branch 'master' into glew and fixed a crash on Intel HD drivers
Added doomclassic for Linux to CMake
Removed doomclassic networking functions
Define MAX_PATH for doomclassic when not compiled for Windows
Fixed some undefined types
Removed some more undefined types in Linux
Changed doomclassic pointer casts for 64-bit compatibility
Replaced obsolete pointer in maptexture_t with int for 64-bit compatibility
Fixed doomclassic memory allocations for 64-bit compatibility. It compiles and runs now on 64-bit Linux (without sound).
Function I_ProcessSoundEvents was missing in doomclassic sound stub
Added OpenAL support for doomclassic
Added OpenAL for doomclassic to CMake and fixed the sound stub problem
Doomclassic OpenAL sound positioning changes
Fixed doomclassic compiler warnings
Merge pull request #63 from felixrg/doomclassic

Add 64-bit and OpenAL support for Doom Classic
Merge branch 'master' into glew

Conflicts:
	neo/renderer/OpenGL/glext.h
	neo/renderer/RenderSystem_init.cpp