Responsive sidebar
Abbreviates nr-nav menu items responsively

The breakpoint is wrong, but the code looks right. I'll probably
abstract it into a mixin.
Logo will now collapse down
Removed conditional comments on html tag
Removed style classes from index.html, and mixed them into the semantic stylings
Removed an unneeded class from the numeric filter markup
Added an empty responsive.scss partial
Stubbed out an unstyled flyout zoom control
Added a lang attribute to html tag
Code styling for ui-keydown
Introduced a couple of responsive mixins
New idea
Added scrollable back in, as its a clue for the master-detail-grid
Reduced size of card detail view
Moved styles from _nav into _subnav directive file
Logo now collapses to just the OS circle
Clarified the content heirarchy in subnav
Small styling change
Groupings are now data driven
abridged mixin can now have a custom display value supplied