added angular-ui-router
added stats state and link to it
factored out start page styles into partial scss
removing scrollbar based on page
added layout for stats page
added restangular
added spinner and loading overlay
refactored div size calculation for stats
introduced waitFor on rootScope to show loading overlay
hiding elements cloaked by angular
added directive for grade chart
factored loading indication logic out into service
added angular moment directive for date formatting
styled the session overview page

with awesome stylor & designor Tony