Code review comment for lp://staging/~cody-somerville/offspring/fix-offspring-on-python2.7

<timrc> Cody, maybe we should add the self._connection line commented out with a note since it's not actually doing anything right now (or that's how I understood your comment)
<timrc> Cody, also do we want to remove the hardcoded python2.6 paths from at least bugsy/config/offspring-web.wsgi (and maybe bugsy/config/offspring-web.apache)? And along with that, do we need to update docs/install.rst at all?