Updated bot and added some more helpful features, such as isPM to messages to discover whether a message is from a PM

lib/message.js

@@ -1,5 +1,6 @@
 var User = require( "./user.js" ).User;
 var List = require( "./list.js" ).List;
+var PMChannel = require( "./PMChannel.js" ).PMChannel;
 
 exports.Message = function( time, author, content, channel, id, mentions, everyoneMentioned ) {
 
@@ -27,6 +28,10 @@ exports.Message = function( time, author, content, channel, id, mentions, everyo
 	}
 }
 
+exports.Message.prototype.isPM = function() {
+	return ( this.channel instanceof PMChannel );
+}
+
 exports.Message.prototype.isMentioned = function( user ) {
 	return ( this.mentions.filter( "id", user.id ).length > 0 );
 }