Merge pull request #3 from glsignal/master

Persist access token in cookie storage
Clicking on the background enables keyboard navigation
Adds 'deep view' icon to a highlight's twingled results
Updates stylesheet for increased visual appeal
Fixes broken 'deep view' functionality
Fixes arrow naviagtion alignment
Converts jquery calls into ng-class, adds new twingling effects
Removes quote justification
Addresses earlier Commonplace pages not being accessible
Implements twingling count feedback
Orders highlight comments in chronological order
Pre: boilerplate update and refactoring