implemented role background dragging
remove unwanted function
use view.width instead of accessing DOM

actors have their width stored internally
add role border
updateRoles when dragging the handles
add role borders to presentation
adjust style for actors without roles
trigger actorCreated for new actor
add role to new actor
fix role style only for non-empty roles
Merge branch 'master' of github.com:transparencyint/CGIP into f-automaticAddRoles

Conflicts:
	app/styles/_actor.styl
	app/views/actor_group_view.js
add div.border to outsource style (we ran out of pseudo elements)
make loader work with role borders
Merge pull request #253 from transparencyint/f-automaticAddRoles

F automatic add roles