Added more guild features, fixed re-joining chat channels on relog

Changed guilds to be saved to a TreeMap instead of solely the SWGSet.
Fixed uses string
Added UnknownAbilityPacket (was sent for every new ability, doesnt seem
to do anything)
Lots of guild improvement/features added.

src/services/object/ObjectService.java

@@ -897,7 +897,8 @@ public class ObjectService implements INetworkDispatch {
 						}
 					}
 					
-					for (Integer roomId : ghost.getJoinedChatChannels()) {
+					List<Integer> joinedChannels = ghost.getJoinedChatChannels();
+					for (Integer roomId : joinedChannels) {
 						ChatRoom room = core.chatService.getChatRoom(roomId);
 						
 						if (room != null) { core.chatService.joinChatRoom(objectShortName, roomId); }