requesting music for tripradio

Adding a command to ping the DJ that a user requests a song.

modules/radio/radio.js

@@ -55,6 +55,26 @@ var radio = function(dbot) {
             }.bind(this));
         }.bind(this)
     };
+    
+    //requesting music by pinging the current DJ
+    //dj should be icy-description inside the headers
+    //user should be the requesting user
+    //request should be the event
+    //TODO:pm dj
+        
+	this.commands={
+		'~request music': function(event){
+			var dj=this.data['icy-description'];
+			var user=event.user;
+			var request=event;
+			dbot.say(dbot.t('request',{
+				'dj':dj,
+				'user':user,
+				'song':song
+			}));
+		}
+	};
+    
     this.onLoad = function() {
         this.internalAPI.getRadio();
     }.bind(this);

modules/radio/strings.json

@@ -5,4 +5,8 @@
     "now_playing": {
         "en": "Now Playing: {name} - {song} - {url}"
     }
+    
+    "request":{
+    	"en":"{dj}: User {user} requests '{song}' to be played on tripradio."
+    }
 }