[RLV] 2.9: @shownametags

This hides name tags and names whenever possible, except from chat.. when not possible, falls back on anonyms

Changed: Radar no longer hidess based on @shownames, that's silly.. now radar hides names when @shownames
Radar will alert when @shownames restricted, but not when @shownametags restricted
Radar will not offer menu when @shownames or @shownametags restricted, and the IM and Profile buttons will disable.

Hopefully fixed broken RLVa logic in llfloaterobjectiminfo.cpp
Fix slightly broken RLVa logic code in llpanelpermissions.cpp
Changed: Range Finder now disallowed when minimap disabled, show loc restriction doesn't change it anymore.
Fix broken hiding of names when offering teleports; rlv_shownames param doesn't seem to always pass, work around those situations...
^-This causes some false positives, I suppose, if you offer teleport from friends list to someone in the region, but better safe than sorry.

indra/newview/llvoiceclient.cpp

@@ -35,6 +35,7 @@
 #include "llnotificationsutil.h"
 #include "llsdserialize.h"
 #include "llkeyboard.h"
+#include "rlvhandler.h"
 
 const F32 LLVoiceClient::OVERDRIVEN_POWER_LEVEL = 0.7f;
 
@@ -526,6 +527,8 @@ void LLVoiceClient::setLipSyncEnabled(BOOL enabled)
 
 BOOL LLVoiceClient::lipSyncEnabled()
 {
+	if (gRlvHandler.hasBehaviour(RLV_BHVR_SHOWNAMETAGS)) return false; // RLVa:LF - You get nothing now!
+
 	if (mVoiceModule)
 	{
 		return mVoiceModule->lipSyncEnabled();