[9774] - See http://tracker.modx.com/issues/9774
Make sure we can not unpublish a 'site_start' resource via tree contextual menu
PHPDoc…
[#9774] Prevent resource/unpublish on site_start

Merge remote-tracking branch 'rtripault/fix-9774' into bug-9774

* rtripault/fix-9774:
  PHPDoc…
  [9774] - See http://tracker.modx.com/issues/9774 Make sure we can not unpublish a 'site_start' resource via tree contextual menu