Merge pull request #199 from bobtwinkles/client_fixes

OnGround tracking fixes
Merge pull request #200 from bobtwinkles/client_fixes

semicolons are hard
Initial implementation, probably doesn't work
Add project reference for TestClient
implement copy constructors
Add OffsetBy to BoundingBox
Hook C.N.Client up to C.N.Physics so client code gets some dumb stuff handled for free
Remove locking velocity for full physics update as it had a tendancy to cause deadlocks if client code tried to modify it
Prevent negative timeouts
syntax
Fix boog in player physics
Style