Certs merge bug fix
Merge pull request #2912 from edx/jrbl/grade_me_button_fix

Stanford: Certs merge bug fix
Changed Lucile Packard Children's CME registration value.
Edited CMS help links with zendesk info
Merge pull request #2921 from edx/giulio/zendesk-help-links

Edited CMS help links with zendesk info
Merge pull request #2922 from edx/giulio/edit-cme-register

Changed Lucile Packard Children's CME registration value.