revert some friends modal changes in b906ce70

- revert to putting suggested friends above current friends in the same list
- order current friends alphabetically rather than by connection status so that
  ordering doesn't change while viewing / scrolling through the list

improvements over prior design:

- use thematic blue as background color for suggested friend entries
- only show add/dismiss buttons on hover
- move "only friend people you trust" warning to modal footer
- search box now filters suggested as well as current friends
Merge branch 'update/friends-modal'

* update/friends-modal:
  revert some friends modal changes in b906ce70

Conflicts:
	app/js/controllers.js
	app/partials/modals.html