Added corners, and adjacency mask
Merge remote-tracking branch 'origin/master'

Conflicts:
	zomblieFortress/Assets/Board.cs
Merge branch 'master' of https://github.com/phargogh/imadeafortresswithzombiesoutsideit

Conflicts:
	zomblieFortress/zomblieFortress.userprefs
Merge branch 'master' of https://github.com/phargogh/imadeafortresswithzombiesoutsideit

Conflicts:
	zomblieFortress/Assets/Board.cs