CRM-14936. Check for existence of Block module.
Merge pull request #198 from eileenmcnaughton/7.x-4.4

CRM-14936. Check for existence of Block module.
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