Add jshint and fix jshint reported issues
Move options on top of grunt tasks
Remove hidden overflow in courseware
Add imagemin grunt task

Minify existing images
Fix overflow on modals
Fix typo
Fix dashboard thumbnails size
Update style of instructor dashboard

Add new alert-warning mixin.
Fix font on about pages
Update footer to match main site’s footer
Fix image size in dashboard
Fix drop down menu style
Fix image size on small dashboards
Fix button style on active and focus states
Update header focus link style
Hide global nav on iPhones
Remove 100vh trick on small devices
Improve responsiveness on the iPhone
Fix university labels on courses and home pages
Add bottom border to course index on small devices