Added notifications to database
Notifications model + Notifications relations on user
Added answer notification

Sends question author a notification that a user has answered their question
Add unseen lambda to notification model

Allows for user.notifications.unseen
Now using User.admins lambda in devise registration #new/#edit
Added notifications partials + render notifications popover in application layout
Added full_name to user
Added notifications popover css
Added animate.css library for UI animations
Added JS to setup notifications popover