CRM-13883 - permanently delete contact should not remove activities if connected to other contacts

http://issues.civicrm.org/jira/browse/CRM-13883
CRM-13883 - white space fix

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* CRM-13883: permanently delete contact should not remove activities if connected to other contacts
  http://issues.civicrm.org/jira/browse/CRM-13883
Merge pull request #2143 from dlobo/CRM-13883

CRM-13883 - permanently delete contact should not remove activities if connected to other contacts