Fix Group Organization BAO not to error if the unique pairing up group_id & organization_id is passed in without the id
CRM_Extension_Manager - Add stub for onPostPostInstall

This is a fix/followup to 3d0e24ec2
Merge pull request #2104 from totten/4.4-ext-postpostinstall

CRM_Extension_Manager - Add stub for onPostPostInstall
-- Modification to remove warnings/notices on uninstall of CiviHR extension
Merge pull request #2106 from NileemaJadhav/HR-fix

-- Modification to remove warnings/notices on uninstall of CiviHR extension
Merge pull request #2101 from eileenmcnaughton/CRM-13841

Fix Group Organization BAO not to error if the unique pairing up group_i...