Replaces Content.Static.deleteSoftly with trash method that uses the new content status.
Replaces the generic ContentStatus with the more specific trashed field in the Content.ObjectModification.
Adds VisibilityLabel support to Content.ObjectModification.
New workflow system prototype.
Merge branch 'master' into feature/workflow
Fixes NPE when schedule's trigger date is null.
Merge branch 'master' into feature/workflow

Conflicts:
	tool-ui/src/main/webapp/WEB-INF/objectPublish.jsp
Renames Workflow2 to Workflow (backward incompatible).
Makes restore button work when the content is in trash.
Fixes bottom spacing in dashboard cell style.
Fixes lack of bottom spacing in RTE styles.
Check for blank headers in proxy.jsp.