-- CRM-13557 changes as per comment

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* CRM-13557: Contact Hash is appearing on manual merge screen and should be suppressed
  http://issues.civicrm.org/jira/browse/CRM-13557
-- CRM-13557 added display_name and sort_name in the list

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* CRM-13557: Contact Hash is appearing on manual merge screen and should be suppressed
  http://issues.civicrm.org/jira/browse/CRM-13557
Merge pull request #1783 from ravishnair/CRM-13557fix

-- CRM-13557 changes as per comment