Updated number js to limit to only numbers and to work in all contexts.
Fixed bug with radio labels.
Fixed strange bug disabling cloned disabled numbers.
Consolidated a bunch of child collection value-changing code into setupChildCollectionValueChanges() since it was repeated in every model with a child collection
Fixed bug with initializing clones with checkboxes.
Misc tweaks for checkbox and select.
Fixed bug with rendering lcloneable field names.
Split group js out to its own file.
Clarified value-changing collection/parent relationships. Moved group to own files. Streamlined some little stuff.