port to latest meanjs
added angular-file dependency
migrated singin actions
social icons size reduced
switched UI links to the html5 #!
replaced username with email and translated user profito bulgarian
Merge branch 'meanjs-update' into dev

Conflicts:
	public/modules/core/controllers/signals.view.client.controller.js
	public/modules/core/views/signals.view.client.view.html
Merge pull request #25 from vns/dev

updated to latest meanjs boilerplate