CRM-14734 - fix notices for anonymous contact viewing a mailing.

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* CRM-14734:
  https://issues.civicrm.org/jira/browse/CRM-14734
CRM-14734 - fix notices for anonymous contact viewing a mailing.

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* CRM-14734:
  https://issues.civicrm.org/jira/browse/CRM-14734
CRM-14734 - allow $details[0][0] for possible hook usage.

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* CRM-14734:
  https://issues.civicrm.org/jira/browse/CRM-14734
Merge pull request #3527 from davecivicrm/CRM-14734

Crm 14734 - fix notices for anonymous contact viewing a mailing