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

OK, sorry, re-read and understand that it's expected to be there. Perhaps a comment? I would ask we take out the explicit mention of python2.6 from docs/installing.rst (or mention alternative packages for python2.7) and make a note that paths should be updated to python2.7 from python2.6 in the wsgi and apache files.