initialize ember app
add front-end dependencies, implement Bootstrap theme
add application router and mock data
basic rendering of articles on index template
add Moment.js dependency
add date helper and display relative time on each article
display logo of article source
add logo to navbar
add behavior to control audio playback
add basic dragging functionality; stub out UI for collections
update path to Bourbon
moving Bourbon out of /vendor to prevent build errors
add vendor assets into project
putting Boutbon back in its place
left menu tweaks
merge master