Changed code formatter to astyle 2.02.1
Merge r2350

When calling qglDrawRangeElementsEXT(), use proper start and end parameters.
Merge r2351

Fix bugs where some surfaces weren't merged and others were counted as merged in R_MergeLeafSurfaces().
Merge r2352

Various shader fixes and optimizations.
Merge r2353

Fix some "> MAX_*" to be ">= MAX_*".
Merge r2354

Change error message in CL_ConfigstringModified to specify out of range index like in server.
Merge r2355

Fix follow command to find clients whose name begins with a number.
Merge r2356

- Fix up "gc" command, make it more like "tell". Based on patch by Ensiform.
- Add usage messages for gc, tell, vtell, and votell commands.
- Check player names in gc, tell, vtell, and votell commands.
Merge r2357

Remove anti tamper leftover code 'CL_ChangeReliableCommand'. From Ensiform.
Merge r2358

#5799 - Change messagemode text box to display colors like in console input box.
Merge r2359

Improve "play" command, based on a patch from Ensiform.
Merge r2360

Remove unneeded name buffer in S_Play_f.
Merge r2361

- Check for invalid filename in OpenAL's RegisterSound function.
- Changed Base sound system to warn not error when sound filename is empty or too long.
Merge r2362

Remove references to non-existent functions CM_MarkFragments and CM_LerpTag.
Merge r2363

Make software overbright optional (cvar r_softOverbright) and reduce the number of FBOs and FBO blits when able.
Merge r2364

Changes suggested by DevHC:
- Remove "!target" checks from tell, vtell, and gc commands. Target was just set, cannot be NULL.
- Validate "order" in gc command before "player id."
Merge r2365

Update standalone code in Catch the Chicken NSIS installer.
Merge r2366

Remove unused function CL_DisconnectPacket. Pointed out by Ensiform.
Merge r2367

Fix function prototype for Info_RemoveKey_Big. Pointed out by Ensiform.
Merge r2368

In q3_ui if uis.demoversion is set, hide "Team Arena" and "Mods" in main menu. (They aren't shown in id's q3a demo and use to be drawn under demo message).