feat(authoring): autosave initial authoring
fix(ingest): fix last updated info
feat(tasks): Creating tasks implemented.

SD-650
feat(users): added userlist service.

SD-650
fix(tasks): Partially fixed small issues, updated to use new api.

SD-650
fix(tasks): Fixed minor issues.
feat(mentions): user mentions basic functionality
feat(mentions): add user info popup
Merge remote-tracking branch 'nikola/auto-save' into devel

Conflicts:
	app/scripts/superdesk-authoring/styles/article-edit.less
Merge remote-tracking branch 'nikola/user-mentions-ui' into devel

Conflicts:
	app/scripts/superdesk-authoring/styles/article-edit.less
feat(notifications): display notification when user is mentioned

when user is mentioned there will be an unread notification in the list

SD-684 SD-656
fix(views): hide attach to desk btn on edit/my content

you can't change the desk because you only see the view on the desk it was defined.
and if there is no desk it doesn't make sense too..

SD-546
feat(tasks): Listing current user's tasks in workspace.

SD-72
fix(users): extend userList service

and make use of it in mentions
feat(preferences): user prefrences ui
fix(notifications): add styling to notification label
fix(checkbox): Reverted checkboxes to native ones.

SD-688
fix(authoring): update styling for widgets
Merge remote-tracking branch 'ozan/checkbox-fix' into devel
Merge remote-tracking branch 'nikola/devel' into devel