Update 1.11 Achievements and more!

Over 50 achievements added to the game!
Fixed the appdata folder to read TheMorrigan rather than Raiders (the prototype name). You can copy over the saves folder if you want to keep the save games see this post for more info. Also fixes previous config issue when updating and not being able to move.
Added a new arena level - this one more suited to archery.
Added one new weapon unlocked on completion.
Bugfixes.