devilry_examiner...test_singledelivery: Moved the date stuff to utils.
devilry_examiner...bulkviewbase: Renamed the primary submit name to submit_primary.
devilry_examiner.views.bulkviewbase: Renamed submit_go_back to submit_cancel,

and added get_cancel_url() to make the cancel URL configurable.
core.models.deadline: Remove second from deadline.

We do not allow specifying seconds for deadline in the UI, and handling
this in the core makes it easier to handle. Se the docstring for
Deadline.reduce_datetime_precision() for more details.
apps.superadmin....devilry_deadline_remove_microsec: Renamed and updated.

Use Deadline.reduce_datetime_precision instead.
apps.core.models.deadline: Use reduce_datetime_precision instead of remove_microsec().