Online edit test.
Merge pull request #1 in VAGRANT/django-dev from tallen-edit-bb20d8dce31 to master

* commit '8abfca685686e2196a16bf8e887d339c24249661':
  Online edit test.
Add instructions for installing flask.
Merge branch 'master' of ssh://stash.wharton.upenn.edu:7999/vagrant/django-dev
Note that MySQL is included.