Implement Move accessors
Add City.get to complete add/remove/get interface
Add validity checking to ManualStrategy
Add World.validMove for validity checking
Added apply and applyInverse to Camera
Fix NPE when City unowned
Fixed confusing interface for Move
Improved ManualStrategy, added Player
Implement MouseStrategy for user input
Add Player add/remove interface for armies
Cleanup Route
Basic mechanics in place
Better City rendering