Thanks to Jonathan Webb and his Lightning module for the fix:
http://cgit.drupalcode.org/lightning/commit/?id=a189452

Pieter Frenssen authored Dec 15, 2014 and Mark Trapp committed Dec 15, 2014

Issue #2051921 by pfrenssen: Warning: strtotime() expects parameter 1 to be string, array given in strtotime

#1087616 by Mark Trapp: Date Popup Authored does not play nice when $form['authored']['#access'] is modified too late

Done in preparation of a larger test suite for the module.

Signed-off-by: Mark Trapp <mark@marktrapp.com>

#970622 by Mark Trapp: Saving a node with Date Popup Authored enabled will result in published time drift

#970622 by Mark Trapp: Saving a node with Date Popup Authored enabled will result in published time drift

#970406 by Mark Trapp: Creating a new node with Date Popup Authored enabled results in a White Screen of Death

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