Integrate group limit with Hippo Grid Manager

indra/newview/llviewermessage.cpp

@@ -153,6 +153,9 @@
 # include "shcommandhandler.h"
 #endif //shy_mod
 
+#include "hippogridmanager.h"
+#include "hippolimits.h"
+
 #include <boost/tokenizer.hpp>
 
 #if LL_WINDOWS // For Windows specific error handler
@@ -666,7 +669,7 @@ bool join_group_response(const LLSD& notification, const LLSD& response)
 	if(option == 0 && !group_id.isNull())
 	{
 		// check for promotion or demotion.
-		S32 max_groups = gMaxAgentGroups;
+		S32 max_groups = gHippoLimits->getMaxAgentGroups();
 		if(gAgent.isInGroup(group_id)) ++max_groups;
 
 		if(gAgent.mGroups.count() < max_groups)