** Converted dockcommunicator widget into new widget system
** Converted language plugin into new plugin system
** Removed useless settings-users-add widget
** Converted settings widgets to new widget system
** Converted fullcalendar widget into a view
** Converted calendar widgets into new widget system
** Removed deprecated WidgetSpaceSet and WidgetSpaceSet classes and
references into them
** Removed unused WorkspaceWidgetSpaceBackingBean and
WidgetSpaceBackingBean
** Removed unused imports
** Removed deprecated environmenttools widget