Adds publish/subscribe channels. Unit tests added.

src/channel.js

@@ -0,0 +1,34 @@
+(function( jQuery ) {
+
+	var channels = {},
+		channelMethods = {
+			publish: "fire",
+			subscribe: "add",
+			unsubscribe: "remove"
+		};
+
+	jQuery.Channel = function( name ) {
+		var callbacks,
+			method,
+			channel = name && channels[ name ];
+		if ( !channel ) {
+			callbacks = jQuery.Callbacks();
+			channel = {};
+			for ( method in channelMethods ) {
+				channel[ method ] = callbacks[ channelMethods[ method ] ];
+			}
+			if ( name ) {
+				channels[ name ] = channel;
+			}
+		}
+		return channel;
+	};
+
+	jQuery.each( channelMethods, function( method ) {
+		jQuery[ method ] = function( name ) {
+			var channel = jQuery.Channel( name );
+			channel[ method ].apply( channel, Array.prototype.slice.call( arguments, 1 ) );
+		};
+	});
+
+})( jQuery );