auto-commit: translation updates
This re-enables the fullscreen render to texture.
Fixes up the render states and other bits required.
Fix the bad alpha blending with billboards caused by the skybox shader not setting the alpha value correctly.
Merge pull request #2763 from fluffyfreak/fix_rtt_skybox_alpha

Render to texture Skybox alpha fix.
Render to texture Skybox alpha fix. #2763
remove lua timers at game exit. fixes #1962
disable RTT again, damn gauges. #2627