WebDeposit: minor edits to API documentation
Zenodo: updates to policy page
WebDeposit: remove restricted access right option
UserCollection: fix evaluation issue

* Fixes an issue with wrong evaluation order in an expression.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
UserCollection: update notification email

* Update notification email to include name of submitter.

* Changes celery task to use BibField.