Sync with Upstream Alchemy

Changes LLEnvManagerNew::setRegionChangeCallback to LLAgent::addRegionChangedCallback
Cleans up some of the timeout policies that aren't necessary any longer.
Modernizes parts of LLViewerKeyboard, updates llregistry.h
Begins changeover from LLDynamicArray to std::vector
Minor merge of newer, trivial SSA functions.
Introduces LLAgent functions: addParcelChangedCallback and canJoinGroups
Support for secondlife:///app/appearance SLapps.
Cleans up older functions.

indra/newview/llappviewer.cpp

@@ -881,9 +881,6 @@ bool LLAppViewer::init()
 	gGLManager.getGLInfo(gDebugInfo);
 	gGLManager.printGLInfoString();
 
-	//load key settings
-	bind_keyboard_functions();
-
 	// Load Default bindings
 	load_default_bindings(gSavedSettings.getBOOL("LiruUseZQSDKeys"));