remove unused method
remove unused method
Add tests for attachments.
Change 'Edit' to 'Update' for changing attachment.
Added 'launchy' gem that Robert used for some test debugging to the Gemfile.
Removed the cucumber step that actually used that gem - there doesn't really
seem to be any reason to have it except when debugging tests, and it's kind
of intrusive as it opens a browser window.

Anyway, doing this will eliminate a warning that showed when running tests.
Rename file to fix typo.
Fix deletion of fedora object before running test - my guess is that
the active-fedora api changed.