The set of resource classes we know about.
The root for the property files.
Get the properties for the attribute editor of a given remote resource.
Get any properties for the editor of the given remote resource instance.
Get the list of helpers to be created for the given remote resource.
Get the properties for the helper of a given remote resource.
Get the best matching resource class properties for given class.
Load the properties from the root directory.
Is the resource editable via JigAdmin?
classes - The class names we're looking a macth for.
A set of helper class names (as an array).
rr - The remote resource being edited.
helperClass - Class of the helper about to be created.
attr - The attribute being edited.