Sync

Includes:
MAINT-3541 (crash in std::vector >::reserve)
MAINT-3364 FIXED Call clearSelection() from root_folder
MAINT-3621 FIXED Set name to "Unnamed" if object's name consists of whitespaces.
MAINT-3412 add gpu_table line with distinct Intel Iris Pro OpenGL regex to match new MBP with forced Intel graphics
MAINT-3119 FIXED Return common chars for triggers that matches the prefix.
MAINT-3661 Fix for crash when uploading corrupt .dae file.
MAINT-3671 FIXED Rename title when new tab is added.
MAINT-3465 FIXED Add check mark to selected entry.
BUG-5537 FIX reverting breaking changes to pectorals and belly.
MAINT-535 FIXED The teleport SLAPP is changed to UNTRUSTED_THROTTLE. Confirmation dialog for teleporting via slapp is added.

indra/newview/llgroupmgr.cpp

@@ -609,6 +609,11 @@ void LLGroupMgrGroupData::recalcAgentPowers(const LLUUID& agent_id)
 	}
 }
 
+bool LLGroupMgrGroupData::isSingleMemberNotOwner()
+{
+	return mMembers.size() == 1 && !mMembers.begin()->second->isOwner();
+}
+
 bool packRoleUpdateMessageBlock(LLMessageSystem* msg, 
 								const LLUUID& group_id,
 								const LLUUID& role_id,