Added categories to nav and changed icons
Added working erb and icon for signout method
Removed alert and notices from application.html.erb
Navigation Partials

-	modified:   app/views/layouts/_nav.html.erb
-	modified:   app/views/dashboard/base/index.html.erb
-	new file:   app/views/layouts/_user_nav.html.erb
-	new file:   app/views/layouts/_admin_nav.html.erb

- Cleaned up and corrected spacing and indentation on code.
- Replaced most raw html with .erb code.
- Edited 'signout' under user dropdown menu with .erb so that signout works here.
- Removed .erb signout code at bottom of index page since it works under user.
- Replaced sidebar nav with .erb if/else statement so it renders nav based on user.role?
- Created user_nav partial. Added .erb code and changed icons around.
- Created admin_nav partial. Filled with Dummy data.
Quickfix - extra spacing in .erb code
Admin Nav

-	modified:   app/views/layouts/_admin_nav.html.erb

- Added navigation for admin
- Added icons for each link
Navigation tweeks

-	modified:   app/views/layouts/_nav.html.erb
-	renamed:    app/views/layouts/_user_nav.html.erb -> app/views/layouts/_student_nav.html.erb
- renamed:    app/views/layouts/_admin_nav.html.erb -> app/views/layouts/_staff_nav.html.erb

- Added cohort to staff navigation
- Added dropdown under cohort for all nav links that go to specific cohorts
- Changed naming convention for enum render
Fixed merge conflict
Staff/student navigation render

-	modified:   app/views/layouts/_nav.html.erb
- added "current_user" to block to fix
Merge pull request #12 from cmckee-dev/develop

Staff/Student Navigation

mergified