fix contact subtype unset during domain update, CRM-14087

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* CRM-14087: Updating default organization's address/phone wipes out the contact sub-type
  http://issues.civicrm.org/jira/browse/CRM-14087
fixed bug in saving email, phone and address CRM-14087

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* CRM-14087:
  http://issues.civicrm.org/jira/browse/CRM-14087
Merge pull request #2370 from kurund/CRM-14087

fix contact subtype unset during domain update, CRM-14087