OpenGL2: Speed up fog shader slightly.
OpenGL2: Some shader cleanup
OpenGL2: Fix for "unsupported framebuffer format" bug
OpenGL2: reduce varying usage in lightall shader.
Fix UI parse message for menu files

Missing a space after colon.
OpenGL2: Disable GL_ARB_seamless_cube_map by default, caused huge frame drops on some hardware
Merge remote-tracking branch 'ioquake3/master'

Conflicts:
	code/game/g_bot.c
	code/renderergl2/tr_backend.c
	code/renderergl2/tr_bsp.c
	code/renderergl2/tr_local.h
	code/renderergl2/tr_main.c
	code/renderergl2/tr_scene.c
	code/renderergl2/tr_world.c
	code/ui/ui_main.c
Fix bot target height for obelisks

Now they aim at the center of the target model, based on patch by Tobias Kuehnhammer.
Fix notarget cheat

Bots no longer target players in 'no target mode'.
Check if possible bot target is on same team sooner
Improve bot enemy selection involving carrying flag or skulls

bots now decide which enemy to attack, when carrying flags/cubes. Team Arena skulls were missing, this caused silly enemy decisions on space maps with g_gametype 7!
allow targeting enemy farther away if carrying skulls (already the case for carrying flags).
Bot revenge support

Make bots use CHARACTERISTIC_VENGEFULNESS to randomly decide if bot should have revenge on player who killed them.

Based on patch by Tobias Kuehnhammer.
Don't have bot crouch if blocks view of target

Can cause bot to keep switching between crouching and standing.
Fix mouse losing client grab after vid_restart

Enable client updating the view angles in cgame ingame init.
Restore snapshot from before vid_restart, fixes weaponSelect

Now player doesn't switch to default weapon and then back to the one selected before vid_restart. (Just uses the one from before vid_restart.)
Don't set the window title twice
Set com_minimized to 0 when the window is restored
Send key up events for the mouse wheel

Previous versions of SDL would send SDL_MOUSEBUTTONUP events for the mouse wheel immediately following the corresponding SDL_MOUSEBUTTONDOWN event
Fix server's player reject prints
Don't have g_teamForceBalance apply to bots or local players

Fixes starting Team Arena server with "even teams" (g_teamForceBalance) enabled.