Fixing initial sortOrder on a sortable List

When added a document to a list we should use max.sortOrder instead of
max.count to determine the initial sortOrder value.
fixing cloudinary images not being delete when "Remove Image" link is pressed
fixing cloudinary existing image not being deleted when image is replaced
adding cloudinary folders using field option 'folder' or defaulting to [prefix (if exists)]/[list path]/[path]
adding ability to specify a field to use as the cloudinary public_id
Merge branch 'fixing-cloudinary-issues'
Merge branch 'enhancement-cloudinary-folders'
Merge branch 'enhancement-cloudinary-public-id'

Conflicts:
	lib/fieldTypes/cloudinaryimage.js