Updates to settings screen:
* Now a personal page which shows important data about a user's activity on Atmosphere.
* Just a template, waiting for endpoints.
* Added email field to /api/profile, used for gravatar.
* Some misc CSS clean up.
Major refactoring for our huge CSS file. It's now nice and organized and commented.
Commented out the settings screen stuff until I have API endpoints to which I can hook it up.
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/atmosphere
CSS fixes, minor edit to settings screen.