Made the repeatable field JavaScript functions a jQuery plugin. ( they are no longer function literals but jQuery methods.)
Adjusted the repeatable field script to use the new jQuery custom plugin method.
Added the ability to set a allowed maximum and minimum numbers of repeatable fields.
Added an example of passing a setting array for repeatable fields.
- Changed the field definition array key name from 'is_repeatable' to 'repeatable' to accept a setting array.
- Changed the field definition array key name, `is_sortable` to `sortable` to be consistent with the `repeatable` key.