This change fixes up the plumbing of the "trivial" option, and adds a new unit

test to verify that publishing a draft with ?trivial=1 does not send an e-mail.

Configured e-mail with the console backend and checked that publishing with

  the box both checked and un-checked did the correct thing.
Turned off e-mail and saw that the check-box no longer appeared, and that

  publishing still worked.
Ran unit tests.