Added animation functionality - to game object
Added pursue behavior
Added permanent power up spawners which will reside on the same spot
through the game
Added functionality - known power up locations.
Added behavior - if needed healing and know powerup location, go for it.
Big change - one tile can have more objects.
Thus rewritten whole logic of checking for the object.
Powerup spawn point now visible. Fixed few issues in decision tree
Merge branch 'master' into gh-pages