converts repo to homeshick

Installing ruby and rubygems on fresh systems was
getting old; homeshick to the rescue! Only requirement
is bash (plus git, for cloning).

Squashed commit of the following:

commit 738ec47fd9698af83a1010d643586e72b53e0a9d
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Tue Oct 14 16:17:46 2014 -0400

    updates README

commit dfac39c362951945d1240f8af3c7c51444a55644
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Tue Oct 14 16:08:29 2014 -0400

    removes git URLs from submodules

commit 2e3723ac68e35be5de839cdd0009f489f8ff4575
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Tue Oct 14 15:48:30 2014 -0400

    adds bootstrap script for dotfiles

commit 3806ac309a9ede09a14cbcadb84812806c037e8d
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Tue Oct 14 15:40:27 2014 -0400

    removes git push simple for greater compatibility

commit eedb53c323d7a594fbdf703c235efe6318879063
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Tue Oct 14 15:40:00 2014 -0400

    adds homeshick compatibility