Fixed navigation of guests
Fixed broken feature
Beautified signup form
Beautified login form
Made dashboard default root for admin/instructor
Beautified instructors' dashboard
Beautified instructors' dashboard
Student selects dojo on signup
Installed rails panel gem
Fixed bug: student does not get approved when approve button is pressed
Beautified login form
Inverse nav color
Only admins can add instructors
Hid about and contact pages when logged in
Made alerts closeable.
Fixed broken cucumber features
Merge branch 'ui-improvements' into develop