TDB 335.56 - 2014/09/21
DB/Misc: Remove some hacks for additem

* Replace sai to add some items with sai action 56 with correct spells to create items
* Add option and sai to replace Blood Elf Disguise for What Illidan Wants, Illidan Gets...
Scripting/Shadowmoon Vally: Added scripting for Infernal Attackers.
Core/ObjectMgr: corrected error labels
Merge pull request #13180 from ShinDarth/335_fix

Core/ObjectMgr: corrected error labels
DB/Misc: Remove more additem hacks

Use proper spells for creating items instead of sai action 56,  this leaves only NR items using this action to add items as data missing for spells.
SQL: Sync world_database after tdb 335.56 release
Scripts/Shadowmoon Valley: Fix static analysis issues added in cd48ee01c0b1465c5b07427bb6fe9baa57f053b9

Fix static analysis issues added in cd48ee01c0b1465c5b07427bb6fe9baa57f053b9 about uninitialized values and pointers possibly point to free'd memory being dereferenced.
In memory of all the developers who got banned from IRC in the process of fixing these issues.
SQLs: Rename updates/world sql files to the new format
Core:/SmartScript: Added log for item has credit spell blabla
DB/Creature Model: Fix a few models by AriDEV