Add simple nav bar styling
Add toUpperCase method to nav.label
Add base.charts to NavigationCtrl
Add charts/index and nrs.charts to app.js
Add Charts controller.js, index.js, module.js
Add chart.html
Add styling to nav bar
Add Bootstrap nav tags to base.html
Add circle span for numbers
Add brand image to nav bar
Add landing page markup
Add Jumbotron background color
Introduce tab directive, add panels
Refactor code