#673 Add a new stub for an ajax call to add a bundle to a worksheet

- in ws search bar, type 'add' then the desired bundle uuid
- in ws_actions, the doAdd method receives the bundle uuid
- the doAdd method gets the worksheet uuid
- the doAdd method WILL call the cli/api to make the add call
- on success, doAdd calls ws_obj.fetch() to tell it to update itself
Merge branch 'refs/heads/feature/worksheet_interface' into feature/673-add-bundle-ui
#673 update this branch and clean out cruft
Merge branch 'refs/heads/feature/673-add-bundle-ui' into feature/worksheet_interface
Fix setting focus above first item