Enable direct linking to single key view. Also fixes refreshing browser from single key view
Enable direct linking to single machine view
Show spinner while waiting for machine to load
Merge branch 'single_view_link' into mist_upgrade_merge

Conflicts:
	src/mist/io/static/js/app.js
	src/mist/io/static/js/app/controllers/keys.js
	src/mist/io/static/main.css