Adding a simple hello script. Closes #12. (#13)

scripts/hello.js

@@ -0,0 +1,36 @@
+// Description:
+//	Say hi to your bot and have it greet you back
+//
+// Configuration:
+//
+// Commands:
+//   hubot hello - Greet your bot
+//
+// Author:
+//	chambrid
+//
+/*
+ * Licensed Materials - Property of IBM
+ * (C) Copyright IBM Corp. 2016. All Rights Reserved.
+ * US Government Users Restricted Rights - Use, duplication or
+ * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
+ */
+'use strict';
+
+const HI_REGEX = /(hi|hello|hey|hiya|sup|howdy|yo)/i;
+const HI_ID = 'hubot.hi';
+
+const path = require('path');
+const TAG = path.basename(__filename);
+
+const greetings = ['Hello', 'Hi', 'Hey', 'Hiya', 'Sup', 'Howdy', 'Yo'];
+
+module.exports = robot => {
+
+	robot.respond(HI_REGEX, {id: HI_ID}, (res) => {
+		robot.logger.debug(`${TAG}: hubot-hi`);
+		let selection = Math.floor((Math.random() * 7));
+		res.reply(greetings[selection]);
+	});
+
+};