Issue CRM-15660. Use CiviCRM custom field handler to render NULL as an empty field.
Merge pull request #200 from xurizaemon/7.x-4.4-CRM-15660

Issue CRM-15660. Use CiviCRM custom handler to render NULL as empty string
CRM-15337 - Fix undefined index in civicrm_metatag_page_cache_cid_parts_alter

Conflicts:
	civicrm.module
remove metatag
Update CiviCRM version to 4.4.10-rc1