EXP-250 FIX Option to disable beacons

hud arrow also controlled by RenderTrackerBeacon setting

indra/newview/app_settings/settings.xml

@@ -8155,9 +8155,9 @@
       <real>1.0</real>
     </map>
     <key>RenderTrackerBeacon</key>
-      <map>
+    <map>
       <key>Comment</key>
-      <string>Display tracking arrow and beacon to target avatar/teleport destination</string>
+      <string>Display tracking arrow and beacon to target avatar, teleport destination</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>

indra/newview/lltracker.cpp

@@ -109,6 +109,8 @@ void LLTracker::stopTracking(void* userdata)
 // static virtual
 void LLTracker::drawHUDArrow()
 {
+	if (!gSavedSettings.getBOOL("RenderTrackerBeacon")) return;
+
 	static LLUIColor map_track_color = LLUIColorTable::instance().getColor("MapTrackColor", LLColor4::white);
 	
 	/* tracking autopilot destination has been disabled