CRM-15366 - Gift Membership Bug Fixes

https://issues.civicrm.org/jira/browse/CRM-15366
CRM-15366 QA changes

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* CRM-15366: Gift Membership Bug Fixes
  https://issues.civicrm.org/jira/browse/CRM-15366
Merge pull request #4223 from atif-shaikh/CRM-15366

CRM-15366 - Gift Membership Bug Fixes