In which we add a user's created quests page and travis deployment to heroku

Depends on https://github.com/freedomgames/Planet-Lab/pull/31

- add a backend endpoint for returning information about the currently logged-in user and a frontend library for consuming that endpoint
- add an angular $resource for dealing with many-to-one resources
- add a page displaying quests created by the user and make it the home page
- add travis config for deploying to heroku

@maiamcguinness