Removing trailing whitespace.
Follow-up #1966852: Fixed CSS not adjusted to account for fieldset changed to container element.
Issue #1980824: Support user and form-provided attributes being output in the wrapping container.
Issue #1966852: Changed options manual entry to be wrapped with a container element instead of fieldset for less jarring output.
Issue #1960630: Added support for title and description properties by adding the form_element #theme_wrapper by default.
Issue #1935544: Changed package name to 'User interface.'
Issue #1690202: Options textfields disabled on webform component (with jQuery Update).
Issue #1597756 by vegantriathlete: Minor typos in .module.
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