Merge pull request #2 from PabloRomanH/master

Angularification finished
Merge branch 'master' of github.com:babelboo/babelboo-app
Added api to add and list email registrations.
nicer landing
Fixed problem retrieving route variable when listing emails.
Angular of landing page almost working.
Merge branch 'registration_api' into dev
Finished email registration functionality.
Cleaning up code.
Merge pull request #7 from PabloRomanH/dev

Dev
file renaming
renamed database
Added support for playlist durations.
Created API to list tags and script to generate and update the database collection.
Created API to find playlists by tag.
Cleaning up code and making playlist creation interface a bit more convenient.
Implemented tag search
Added navigation bar showing user name and number of points.
Added confirmation before deleting playlists for security.
Logout link now works