Re-pulling from master (starting over).
Slide-panel has just begun to work.
Coming together.
Left panel looks & functions good enough.
Merge branch 'sidepanels2'

Conflicts:
	app/scripts/controllers/main.js
	app/styles/feed.css
	app/views/index.html
	app/views/partials/main.html
	app/views/partials/navbar.html