Update the user minified CSS file.
Add init(), listActions() and returnToTopTarget() to cnTemplate.
Call cnTemplatePart::init() when the plugin is initialized.
Some code cleanup of the shortcode and use the template part for the list actions.
Added some CSS to keep themes from floating the form inputs.
Add support for the $tag shortcode callabck param and code cleanup.

Closes gh-138.
Closes gh-144.