CRM-12623, count_distinct stat

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* CRM-12623: Create CiviHR Report Template
  http://issues.civicrm.org/jira/browse/CRM-12623
CRM-12623, support setting accordion title with groupings

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* CRM-12623:
  http://issues.civicrm.org/jira/browse/CRM-12623
Merge pull request #1044 from deepak-srivastava/CRM-12623

CRM-12623