Update requirements txt djangobakery

Updates requirements.txt from django-bakery=0.1 to django-bakery = 0.2.2 so the user can specify different s3cmd config files with the --config= flag.  I don't understand why this commit contains all the commits I've made to my own master and not just the commit I made with the change to update-requirements-txt-djangobakery branch.  I'm sending this as a test more than anything.