*Wintergrasp: Tower Control was not applied when entering zone, by Spp

*Wintergrasp: Announce tower and workshops being damaged/destroyed, by Spp
*Wintergrasp: Announce when a player gets rank, by Spp
*Wintergrasp: Implementation of custom commands (.wg for more info), by Spp
    Note: enable on/off will stop timer, it's not a real disable

--HG--
branch : trunk

src/game/Wintergrasp.h

@@ -201,6 +201,14 @@ class OPvPWintergrasp : public OutdoorPvP
         uint32 GetTimer() const { return m_timer / 1000; };
         TeamId GetTeam() const { return m_defender; };
         bool isWarTime() const { return m_wartime; };
+        void setTimer(uint32 timer)
+        {
+            if (timer >= 0)
+                m_timer = timer;
+        };
+        void forceChangeTeam();
+        void forceStopBattle();
+        void forceStartBattle();
 
         // Temporal BG specific till 3.2
         void SendAreaSpiritHealerQueryOpcode(Player *pl, const uint64& guid);