feat(articles): add article styles
feat(header): position header fixed at top
feat(ui-view-transitions): add subtle transition to state changes
feat(public): refactor ng-include to jade include for header and footer
feat(bower): add angular-animate dependency
feat(gulp): add angular-animate to copy task
feat(articles): update layout
feat(_build): add ngAnimate module
feat(_build): update main app styles
feat(_build): change base font size to 20px
feat(articles): update route url's