Merge pull request #2419 from eileenmcnaughton/CRM-14137

CRM-14137 , CRM-14138 , report_template.getrows api tidy up
CRM-14137 alter report metadata in api result to be keyed as 'metadata' per discussions

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* CRM-14137: Report_template.getrows api - allow retrieval of metadata at the top level
  http://issues.civicrm.org/jira/browse/CRM-14137
Fix e-notice on Case/Demographics report so it does not need to be excluded from test