Use SDL 2 instead of SDL 1.2
Make the mousewheel work
Allow hardware gamma, in theory
Convert SDL text input to UTF-32
Fix wacky patch for r_ignorehwgamma
Improve console key situation
Update bundled SDL headers/libs
The in_mouse stuff makes no sense in SDL2
Merge branch 'master' into sdl2

Conflicts:
	Makefile
	code/renderercommon/qgl.h
	code/renderergl1/tr_local.h
	code/sdl/sdl_glimp.c
Merge branch 'master' into sdl2

Conflicts:
	code/sdl/sdl_input.c
SDL2 libs for OSX, thanks to MAN-AT-ARMS
Update prebuilt SDL2 libs for Windows
More updates to SDL2 libs from MAN-AT-ARMS
Update SDL2 headers... oops
Fix initial window position being top left
Various fixes from Fuma
Merge branch 'master' into sdl2
Fix building sdl2 branch on travis-ci

Install libsdl2-dev from a PPA.
Don't set the window title twice
Set com_minimized to 0 when the window is restored