Webform strawberryfield 8.x-1.0-beta1 (v1.0.0-beta.1)

Freezing First Beta1 Release of webform_strawberryfield

Matches https://github.com/esmero/archipelago-deployment/tree/8.x-1.0-beta1

Announcement and notes: https://groups.google.com/forum/#!topic/archipelago-commons/xTWsXzQOIFY