[svn] * Reimplemented packet/update forwarding in more generic way

* Implemented far sight spells (Far Sight, Eagle Eye, etc) at unlimited range and properly forward packets
* Implemented bind vision spells (Mind Vision, etc) to forward packets at unlimited distance
* Implemented Sentry Totem (both vision switching/forwarding and alerting)
* Other misc possession fixes
* Added .bindsight and .unbindsight commands

Please test out the above spells (including Mind Control) and report any issues on the forums.

--HG--
branch : trunk

src/game/Level3.cpp

@@ -6815,3 +6815,26 @@ bool ChatHandler::HandleUnPossessCommand(const char* args)
 
     return true;
 }
+
+bool ChatHandler::HandleBindSightCommand(const char* args)
+{
+    Unit* pUnit = getSelectedUnit();
+    if (!pUnit)
+        return false;
+        
+    if (m_session->GetPlayer()->isPossessing())
+        return false;
+
+    pUnit->AddPlayerToVision(m_session->GetPlayer());
+
+    return true;
+}
+
+bool ChatHandler::HandleUnbindSightCommand(const char* args)
+{
+    if (m_session->GetPlayer()->isPossessing())
+        return false;
+        
+    m_session->GetPlayer()->RemoveFarsightTarget();
+    return true;
+}