Clean up backend_edit controller
Fix buggy backend renaming and toggling. Also pre-render backend-edit popup
Add star images on the spritesheet
Add star images into sprite-images folder
Refactor key add popup to use the PopupView and to be pre-rendered
Fix tests
Fix pre-rendering
Merge pull request #224 from mistio/clean_edit_backend

Fixes on edit backend popup
Automated build of mist.js & mist.css
Merge pull request #226 from mistio/star_icons

Add star images on the spritesheet
Merge pull request #227 from mistio/key_popup

Pre-render key add popup and more
Automated build of mist.js & mist.css
Merge branch 'staging' into compress_html

Conflicts:
	src/mist/io/static/js/app/templates/templates.js