Squashed commit of the following:

commit 4aa9856b893f8e8d654cda1908feeb51128ad567
Author: Sean Jensen-Grey <seanj@xyke.com>
Date:   Tue Apr 22 20:31:58 2014 -0700

    fixed markdown formatting

commit 512e344925e626c12ab5dcf171ff69accc56fd1a
Author: Sean Jensen-Grey <seanj@xyke.com>
Date:   Tue Apr 22 20:29:09 2014 -0700

    pip install instructions, test instructions

commit 521a7d4ab8dae0af6d522c4bf8e0bd3d0274494d
Author: Sean Jensen-Grey <seanj@xyke.com>
Date:   Tue Apr 22 20:02:12 2014 -0700

    fix typo in set, add pip install instructions
Merge branch 'master' of github.com:seanjensengrey/pybloomfiltermmap