Version 1.0.13 Beta

In this release, Publish gets a UI refresh. Additional changes linked below.

#489: Reference field no longer editable when set to readonly
#511: Refactor SSL, resolves installation issue using Node.js 10
#526: Support multiple referenced images
#538: Render first image only in list view when a field contains multiple images
#544: Fix issue with fields with dropdown options failing to save
#545: Fix pagination links when sorting
#554: Media field added to replace subType "Image". Use "subType": "Media" in field configurations
#555: Image fields use CDN for preview if configured