CRM-14057 - contact logging detail report may have missing/wrong altered and altered by name

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* CRM-14057: contact logging detail report may have missing/wrong altered and altered by name
  http://issues.civicrm.org/jira/browse/CRM-14057
Merge pull request #2336 from deepak-srivastava/CRM-14057

CRM-14057 - contact logging detail report may have missing/wrong altered...