richtext::xinha::add_editor		Add the necessary JavaScript and other files to the current page.
richtext::xinha::initialize_widget		Initialize an Xinha richtext editor widget.
richtext::xinha::render_widgets		Render the xinha rich-text widgets.
richtext::xinha::resource_info		Get information about available version(s) of Xinha, either from the local filesystem, or from CDN.