added nitpicks to notification
Fix to ordering and number of nits per page in nits history.
ignore node_modules directory
Add rake task for clearing out old notifications
Add rake task to clear out invalid emails
Change flash message on hibernation
Specify the db host in development environment. Fixes #921.

Some machines don't make that assumption. May as well be explicit about
it.
added test db migration to README.md
Add logo
forgot =test :-(
Nuke the css cache
Merge branch 'master' of github.com:bjhaid/exercism.io