add bulk permissions for registered users
use the valid layer name as file name on the disk
don't trigger save twice in update layers, set correctly the bbox.
Merge pull request #1716 from simod/issue-1713

use the valid layer name as file name on the disk, fixes #1713
remove container width breaking responsive layout
Merge pull request #1721 from simod/issue-1719

don't trigger save twice in update layers, set correctly the bbox.
use bootstrap alerts to notify the bulk perms submit, and better resource select method
fix test
Merge pull request #1720 from ischneider/minor-less-fixes

remove container width breaking responsive layout
Merge branch 'master' of https://github.com/GeoNode/geonode into bulk-perms

Conflicts:
	geonode/static/geonode/css/base.css
Merge pull request #1712 from simod/bulk-perms

Bulk permissions