Add flash message system, fixes #525
Add guest user banner
Fix design of alert-row
Incorporate design work for notification center and alert system
Rename notifications to alerts so there's no confusion with notification center
Update LESS version so imports are automatically imported once
Design tweaks
Merge pull request #642 from kleinsch/alert-banner

Alert Banner
refactors the card.js tests
refactors activity.js integration tests
Merge pull request #644 from zachgersh/integration_activityjs

refactors activity.js integration tests
Merge pull request #645 from zachgersh/integration_cardjs

refactors the card.js tests