Summary: New physics in!
Squashed commit of the following:

commit 8afcc0e7a54686e45420e84126340310f31034c6
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 22:17:46 2014 -0700

    Comments added

commit cd551a25760ca18f255aac4a15cdf58f6d5a9cee
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 19:16:17 2014 -0700

    almost done!

commit b19deeb091f38a52d3d5e671780b924ad86832dc
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 18:33:22 2014 -0700

    finalized maybe

commit 9d578b335c4ae0cd2edacb90474e3fdfd2006d6b
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 17:47:51 2014 -0700

    steps being taken

commit 0deae17a9365dc062164449e308a88dde8c09a8b
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 01:24:52 2014 -0700

    more shapes stuff

commit fd854bc5c3eb469f38d46e43beb9c481a9dc45c2
Author: Jimmy Spencer <jimbobkr@me.com>
Date:   Mon Sep 29 00:48:58 2014 -0700

    Starting to work out having multiple hitboxes