Minor styling changes to bootstrap.css
Removed redundant code
- menu text changes and edits
First draft of new notifications framework
Merge branch 'master' of heroku.com:drona
Added - but not using - code for setting notification messages based on passed JSON
Auto-click the first left-tab

Changes made for cases where the left-tab is statically rendered (teacher/sektions)
 or dynamically rendered ( eg. when loading selected topics during quiz-building )