When an edit overrides an object lock, note it in the transaction record
Mark these edits with an emblem, similar to the "MFA" and "Silent" emblems, so it's clear that they may have bent the rules.
Also, make the "MFA" and "Silent" emblems more easily visible.
Edited a locked task, overrode the lock, got marked for it.
Reviewed By: amckinley
Maniphest Tasks: T13244
Differential Revision: https://secure.phabricator.com/D20131