Add goblin mount vendor
Tools/MapExtractor: Don't start filenames with a backslash
Core/Movement: Fixed flying mount speed not persisting after relogging/teleporting
Merge pull request #12064 from czw/catafix

[4.3.4] Fix bogus filenames generated by the map extractor
Merge pull request #11576 from ukulutl/4.3.4

Scripts/Vendor: Add goblin mount vendor
Merge pull request #1 from TrinityCore/4.3.4

4.3.4