Fix tab groups not tabbing correctly.
Take out unnecessary box ids.
Make box names editable inline.
Minor SASSy refactoring.
More tab styling.

Change box deletion; improved look, fixed bugs, swagged the fuck out.
Fix tabs not being removed correctly.
Refactor some tab template stuff.
Fix file upload boxes not being hidden.
Some tab improvements.

Make delete buttons on tabs do something; clicking on tabs (not just
box names) switches tabs; some styling of delete buttons.
Merge branch 'tab-group-styles'

Conflicts:
	app/assets/stylesheets/custom.css.scss
	app/assets/stylesheets/notebooktemplates.css.scss