Field normalization/notice fixes

UCF / WP-Shortcode-Interface

Creates a shortcode interface that provides a form for inserting and updating shortcodes.

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Closed cjg89 closed 7 years ago

cjg89 commented 7 years ago

Fixed notice when $_GET['shortcode'] isn't set in WP_SCIF_Admin::render_iframe_content()
Added field normalization, ensuring that field options are always set and preventing undefined index notices