Issue #1989476 by tim.plunkett: Allow content types to define an access callback for create/add.
Issue #1925018 by DamienMcKenna, BerdArt, tim.plunkett: Fixed admin UI error from blocks containing render arrays.
Issue #81953 by CashWilliams, larowlan: Fixed access bypass in CTools node autocomplete: view unpublished nodes.
Issue #1958538: Backported math expression test coverage from d8
Issue #1923242 by Spleshka: Fix syntax error causing all tests to fail.
Backport #1704894 and #1724332 both by tim.plunkett Backport bug fixes to property parsing.
Issue #1589922 by damiankloip: Added module name to ctools-export-info drush command.
Remove another dsm
Issue #1763746 by anon: Remove extraneous unused return call.
Issue #1722068 by letharion: Add 410 Gone http response handler to page manager.
