CRM-12505

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* CRM-12505: Social Networking block should only be included on Thank-you page for online contributions and event registration
  http://issues.civicrm.org/jira/browse/CRM-12505
CRM-12505 remove social block from Main.tpl form

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* CRM-12505: Social Networking block should only be included on Thank-you page for online contributions and event registration
  http://issues.civicrm.org/jira/browse/CRM-12505