Get latest attachment from the channel

utils/attachment.js

@@ -0,0 +1,11 @@
+// Take latest image in the channel
+module.exports = function(message) {
+	return message.channel.messages.fetch().then(messages => {
+		// Could be better
+		return messages.map(m => {
+			let attachments = (m.attachments).array();
+			if (attachments[0]) return attachments[0].url;
+			else return null;
+		}).filter(key => key != null)[0];
+	});
+};