Conflicts:
indra/newview/llfloateractivespeakers.h - llparticipantlist.h got changed from a panel to a layoutpanel
indra/newview/lloverlaybar.cpp - Silly conflict, I change one line, Shyotl changes the next two.
Compile fixies:
indra/newview/llavataractions.cpp needed to include llnotifications.h
indra/newview/llvoicechannel.cpp needed to include llnotifications.h
Tweaked LLRenderTarget to support depth textures if FBO support is lacking.
Prefer LLRenderTarget::getFBO() over LLRenderTarget::sUseFBO when determining how to handle a specific LLRenderTarget object. (Decoupling to simplify logic without having to track a global)