First pass with tests done.
Adding zeroclipboard.
Letting heroku set REDISTOGO_URL. Some code cleanup.
Putting back redis url in config.py
Updating test code to run on local redis instance.
Adding domain name to short url.
Adding README.
Short URLs now redirect. Added new endpoint for seeing traffic details.
Merge heroku branch.
Minor style update.
Bugfix: add domain name to short url.
Fix tests.
Adding informative error displays.
Adding id to JSON.
Defining info messages globally.
Removing local redis instance URL in views.py checked in by mistake.
Adding loaderio verification file.
Extract loaderio code to a separate function.
Adding loaderio test payload.
Updating README