First part of Import Artifact done - the proper modal dialog shows up
when the Import Artifact button is clicked.
The import dialog's submit form is now working properly.  It fails with
a 404 because I haven't impl'd the server-side code yet.  But first, I
think I need to create the client-side growl service.
Implemented a client-side notification service.
Basic ability to upload/import an artifact has been added.  Improvements
pending.
Artifact upload works ok now - the error case is handled poorly, but
the success case is pretty good.
Merge pull request #57 from EricWittmann/srampui-54-upload

(srampui-54, srampui-64) Implemented import-artifact and notifcation service