Add attr_reader for PersistedURI#long_uri
minor update to anon user cuke step
Main app should reference PersistedURI#long_uri
Fix bug in index.erb long_urls now being saved
Add click count & created_at to URI persistance
Add redis to gemfile
Add some flexibility for PersistedURI args
Add Json gem
Shortened URIs now all begin with at least 1 digit
Shortened URLs begin with digits in main App
Update naming for getting all short URN
Reduce coupling btween Anon User steps & internals
Increment click count when following shortened URL