Bugfix/4417 add zip to requirements (#4427)
Bugfix/4417 add zip to requirements (#4427)

* use grunt-sass instead of grunt-contrib-sass

* Require PHP ZipArchive (zip) Closes #4417

ChurchCRM/CRM,ChurchCRM/CRM,ChurchCRM/CRM,ChurchCRM/CRM,ChurchCRM/CRM