Share layout changes

Create new layout for share, with share details on the left, and export
information on the right.
Display usage as a bar
Merge branch 'master' into issue#197_share_permissions
Share access control and share details layout changes

Remove max width 960 for responsive container
Change layout of share details page
Add placeholder access control section
Reduce size of usage pie chart
Merge branch 'issue#197_share_permissions' of github.com:sujeetsr/rockstor-core

Conflicts:
	src/rockstor/templates/storageadmin/css/style.css
Share details page layout changes

Refactor nfs and samba views and templates to work with the new layout
Share permissions

Display owner, group and share permissions
Share permissions

Add user, group and permissions template
Add handler for view, edit and save functions for acl
Share details page redesign

Redesign share usage module
Share details layout modifications

Remove module container and extra divs for modules
Add snapshot add and delete
Layout changes

Add sidenav placeholder
add css changes so that maincontent area scrolls while navbar
and sidenav remain fixed
Layout changes

Add sidenav render function in router.js
Add content for storage->share sidenav
Layout modifications

Add sidenav templates for main sections
Layout changes

Modify button styles
Add icons to buttons
Modify share details subsections to use buttons instead of links for
actions
Layout changes

Make icons and buttons consisten across pages
Merge branch 'master' into issue#197_share_permissions
Merge branch 'master' into issue#197_share_permissions
Layout modifications

Add widget selection to sidebar on dashboard
Enable widget add on widget selection,
and widget remove on widget close or widget deselection
Layout modifications

Remove redundant page titles
Merge branch 'master' into issue#215