CRM-10692 - commit andrew hunt patch. rework in next commit

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* CRM-10692: unable to override /CRM/Core/Utils.php from extension
  http://issues.civicrm.org/jira/browse/CRM-10692
Merge pull request #862 from dlobo/CRM-10682

CRM-10692 - commit andrew hunt patch. rework in next commit