- fixed issues with piemenu cursor code being enabled when spectating
- the cursor is now enabled when in an observer mode that locks the view.
- fixed bugs/exploits where dead players could first person spectate the enemy team or travel around in freelook if all spectatable players on the team are dead.
- add GLSL postprocessing shader to world view and have it replicate the old gamma ramp
- clear framebuffer between frames to fix visual bugs outside map
- remove old gamma ramp code (was disabled) and remove gamma adjustments to hud elements as they're now unaffected by the shader
- additional visual preset config updates
o Moved text chat a bit up to allow commanders to see the text.
o Resource label is no longer obfuscated by the text chat.
git-svn-id: https://unknownworlds.svn.cloudforge.com/ns1@123 67975925-1194-0748-b3d5-c16f83f1a3a1
