Merge commit '32d9a71a4219ea353950979a2491e7879b7fa79a' into 4.3.4

Conflicts:
	README.md
	sql/base/auth_database.sql
	sql/updates/world/2014_12_27_01_world_335.sql
	src/server/game/Conditions/ConditionMgr.cpp
	src/server/game/Globals/ObjectMgr.cpp
	src/server/game/Server/WorldSession.cpp
	src/server/scripts/Commands/cs_misc.cpp
	src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/instance_hyjal.cpp
	src/server/scripts/Kalimdor/zone_dustwallow_marsh.cpp
	src/server/scripts/Spells/spell_hunter.cpp

src/server/shared/Networking/MessageBuffer.h

@@ -81,6 +81,14 @@ public:
         }
     }
 
+    // Ensures there's "some" free space, make sure to call Normalize() before this
+    void EnsureFreeSpace()
+    {
+        // Double the size of the buffer if it's already full
+        if (GetRemainingSpace() == 0)
+            _storage.resize(_storage.size() * 2);
+    }
+
     void Write(void const* data, std::size_t size)
     {
         if (size)