DDF-611 added refresh icon to metacard list view to rerun query manually
DDF-607 Added back workspace name check
DDF-617: Added last time a workspace query ran to the list of saved queries in a workspace view
DDF-404 cleaned up code

- cleaned up metacard detail view to use marionette
- changed metacard selection to only use the event rather than a model attribute
- changed search control view to be state driven / removed back and forward actions
- cleaned up workspace model initialization
DDF-579  removed commented out code
DDF-404 removed white space property from workspace header
DDF-579  changed to use StringUtils check for clarity
DDF-578: Added UI API for admin
DDF-619: UI changes for persistent activities