DB/BroadcastText: Assigned BroadcastTextIDs to some texts
DB/Misc: Fix startup errors
Rename 2014_09_28_00_world_conversion.sql to 2014_09_28_00_world.sql
Buildsystem/MSVC: Removed /SAFESEH linker option from x86 debug builds as it doesn't make sense in debug builds and interferes with Edit and Continue

Closes #13233
WorldServer/Misc: Log possible errors on shutdown

Log possible error on shutdown happening when trying to cancel any I/O sync operation in CliThread, refers to #13201
Core/GameObjects: Fixed uninitialized elevator period value
Core/AH: Fix Auction House items not deleted from database

Fix some cases where Auction House items were not deleted from item_instance table of character database, for example if the owner didn't exist anymore or if the owner was the AHBot.

Updates #12699
Updates #13232
DB/Gossips: Localized talents gossips by assigning them to their BroadcastTextID

* Closes #12546
DB/Gossips: Added a missing one from 8983fbba531ac732ca48b9b78d85b2858eee67fd
DB/Quest: Fix more locales on 3.3.5a
DB/Gossips: Added some more assignation to their proper BroadcastTextID
Merge remote-tracking branch 'origin/master' into 4.3.4