Sync llcommon with Alchemy a bit.

llmath::llround->ll_round
LL_ICC->LL_INTELC
Add llpredicate
Add LL_CPP11 macro
Remove llhash
Update llinitparam, llsd and all relatives of it.

indra/newview/llworld.h

@@ -46,7 +46,6 @@
 #include "llstring.h"
 #include "llviewerpartsim.h"
 #include "llviewertexture.h"
-#include "sguuidhash.h"
 #include "llvowater.h"
 
 class LLViewerRegion;