Core/Reputation: Implement a more generic solution for reputation spillover (fix by Lynx3d, port by Kaelima)

* Sorts out issues with factions 1037 and 1052
* Give a more correct client output when reputation is assigned to parent faction
* reputation_spillover_template can still be used to override spillover from dbc
Closes issue 4915.

--HG--
branch : trunk

src/server/game/Globals/ObjectMgr.cpp

@@ -7156,7 +7156,7 @@ void ObjectMgr::LoadReputationSpilloverTemplate()
         bar.step();
 
         sLog.outString();
-        sLog.outErrorDb(">> Loaded `reputation_spillover_template`, table is empty!");
+        sLog.outString(">> Loaded `reputation_spillover_template`, table is empty.");
         return;
     }