Merge pull request #36 from bb010g/patch-1

Essential feature

plugins/ping.lua

@@ -1,11 +1,13 @@
  -- Actually the simplest plugin ever!
 
 local triggers = {
-	'^/ping[@'..bot.username..']*'
+	'^/ping[@'..bot.username..']*',
+	'^/annyong[@'..bot.username..']*'
 }
 
 local action = function(msg)
-	sendMessage(msg.chat.id, 'Pong!')
+	sendMessage(msg.chat.id,
+              msg.text_lower.match('^/ping') and 'Pong!' or 'Annyong.')
 end
 
 return {