Rewrite much of the GM ticket system

* Extract storage and manipulation of tickets to TicketMgr (from ObjectMgr)
* Extract ticket commands to TicketCommands.cpp
* Adds support for sending GM responses and GM surveys.
* Fix structure of several ticket-related packets.
* Add support for understanding lag reports.
* Thanks Zor for some of the packet structures, and Cyrax for some sniffs
* Please report any issues encountered via the tracker.

--HG--
branch : trunk

src/server/worldserver/worldserver.conf.dist

@@ -1354,6 +1354,11 @@ AllowPlayerCommands = 1
 #        Default: 1 (enable)
 #                 0 (disable)
 #
+#    GM.TicketSystem.ChanceOfGMSurvey
+#        Chance of sending a GM survey with every ticket completion.
+#        Default: 50
+#                 0 (disables surveys)
+#
 ###############################################################################
 
 GM.LoginState            = 2
@@ -1369,6 +1374,7 @@ GM.AllowInvite           = 0
 GM.AllowFriend           = 0
 GM.LowerSecurity         = 0
 GM.AllowAchievementGain  = 1
+GM.TicketSystem.ChanceOfGMSurvey = 50
 
 ###############################################################################
 # VISIBILITY AND RADIUSES