DB/Creature: Remnant of Dahlia Suntouch

Script event which occurs when Dahlia Suntouch is killed.
Core/Misc: Optimized locale loading
DB/Misc: Resubmission

Resubmit https://github.com/TrinityCore/TrinityCore/commit/c212c4fcc3bde1809e58fe1c16d37a29d70ce7bb with different guids
Remove uneeded files.
Core/Socket: Added helpers to retrieve the size of currently ready data
Core/Misc: Fixed loading trinity_string
Merge remote-tracking branch 'upstream/master'