achievements: import 8.3 achievements
achievements: import 8.3 achievements

* Added new category Expansion Features > Argent Tournament
* Added new category Expansion Features > Visions of N'Zoth
* Added new category Legacy > Battlegrounds
* Splitted sub-category Player vs. Player > Player vs. Player > Cities in the following categories:
  - Legacy > Player vs. Player (achievements 612)
* Splitted sub-category Player vs. Player > Deepwind Gorge >  in the following categories:
  - Legacy > Battlegrounds (achievements 8359, 8358, 8360, 8350, 8351, 8354, 8355)
* Moved sub-category World Events > Argent Tournament > Champion  →  Expansion Features > Argent Tournament
* Moved sub-category World Events > Argent Tournament > Exalted Champion  →  Expansion Features > Argent Tournament
* Moved sub-category World Events > Argent Tournament > Other  →  Expansion Features > Argent Tournament
* Fixed faction of achievement Heroic: War for the Shore (None -> H)
* Fixed faction of achievement Heroic: War for the Shore (None -> A)
* Fixed faction of achievement Hero of the Horde: Corrupted (None -> H)
* Fixed faction of achievement Hero of the Alliance: Corrupted (None -> A)
* Deleted categories:
  - World Events > Argent Tournament

kevinclement/SimpleArmory,kevinclement/SimpleArmory,kevinclement/SimpleArmory