Added (very basic) spam filtering plugin support. Plugins can mark a message as spam by hooking into the spam check API, which is documented in functions.php. No spam checking functionality is built-in.

/* CSS file for table dialog in the table plugin */

.panel_wrapper div.current {
	height: 245px;
}

.advfield {
	width: 200px;
}

#class {
	width: 150px;
}