basic framework for collisions
add a physical shape to the monster object
made Actors and Vehicles members of the game object instead of a local variable.
use the global game variable instead of passing the parameter to the monster init method.
adjust when the collision moves with the monster
Actors now have collisions
change the way vehicles are drawn so they are rotatable.
monster image is now rotatable (even though its a square at the moment).
Actors draw better now too
apply collision shape to vehicles
change debug keys so that objects spawn at monster location
update change log
Merge branch 'feature/collisions' into develop