Removes MinPubSub.

Squashed commit of the following:

commit 15b594bc80a5082f20659b53b7528ae358949486
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Mon Jun 16 20:51:12 2014 -0500

    Bumps to 0.4.13.

commit 09a17344db8fab362e4d77ff7b4f8c810a0e97dd
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sun Jun 15 19:02:59 2014 -0500

    Completely removes MinPubSub and rebuilds.

commit a94d2890b6e9df9697ce1cf8f7864675a05da60d
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 14 13:30:51 2014 -0500

    Replaces MinPubSub calls with Backbone trigger/on.