modify occupy to fit the new player manager. Create occupy related actions.
Get rid of old managers. Make occupier "undetectable" with new manager using observer. TODO: make occupied building "puke"
Try to add the units back to origin players
Yay unit added back to player probably! Able to perform occupy action again
refactor
refactor, and implement undetectable state in game update
Merge pull request #32 from Tadimsky/occupy_w_new_manager

Implementing occupy with new manager