CRM-11823 - D6 - Move render step for html-header to CMS driver
CRM-11823 - D6 - Use normal addCoreResources() instead of fully-formed markup; non-Civi pages now work with Resources API
CRM-11823 - D6 - Doc comment
Merge pull request #7 from totten/6.x-html-head

CRM-11823 - Enable CiviCRM to generate HTML HEAD elements on non-Civi pages