Add touch screen input
Fix one valid touch area having ID = 0
Merge pull request #108 from stopiccot/cmake_fixes

Added qfusion_server cmake target + some cmake fixes
Add missing \n to unix_qgl
Add cg_touch_scale cvar for HUD touch button scale
Add missing cvar declaration
Take screenshots as GL_RGBA
Write TGA screenshots as BGR
Add missing upload_width/height assignments
R_FillStartupBackgroundColor #16141c
Fix check for .pk3 files to be ignored
Fix FXAA on Adreno shader compiler
Define FXAA_GLSL_130 on GLES3 (even though FXAA3 doesn't support GLES)
GL_ARB/OES_depth_texture is required for soft part
Add GL_EXT_multiview_draw_buffers
Starting to get rid of function extension suffixes
Fix signed/unsigned mismatch
*code refactoring cat here*
Re-add removed BlitFramebuffer ext versions
Create Z RB only if needed, Z tex only if supported