Started doing phyics better
Continued revamp of gravity.
Expanded SmashUp to include the things that got smashed up.
Trying out bandit for unit testing.
Removed old x/ySpeed stuff in favour of direction vector.
Removed original recalulateThing function.
Added unit test placeholder in for Brick.
Smashup toString method says which objects were involved in the smash up.
Added specs for biscuits and hangar.
Corrected the randomisation on startup.
Reduced clutter.
Added same folder structure to tests.
Added some more assertions.
Added gmock support for tests.
Added specs for smash man and smash up.
Merge pull request #1 from andystanton/better-physics

Better physics