musicalroutes v1.0.4

Music Routes-- likely the world's first/last noisy express.js middleware

tl;dr: Play a noise or song when a route is hit, just a toy

//const app = require('express')();
const musicalroutes = require("musicalroutes");
app.use("/tunes", musicalroutes());

(See companion blog post here: https://medium.com/@valgaze/musical-middleware-for-expressjs-2ebc2cf0d4cd#.js4ittoyf)

Node 4.2.6+, Mac only for now

Demo function to ensure all is working smoothly (you should hear a song):

```bash
const tunes = require("musicalroutes");
tunes.demo();
```

Optional Parameters:

1. Source: Custom audio source (absolute path or youtube URL)

   app.use("/tunes", musicalroutes({"source":"https://www.youtube.com/watch?v=3GwjfUFyY6M"});

2. Predicate: Optional function that resolves to true/false that determines if audio source plays (callback takes the full req/res object)

   app.use("/products/:id", musicalroutes({
       "source": "https://www.youtube.com/watch?v=3GwjfUFyY6M",
       predicate: (req, res) => {
           if (req.params.id == 7) {
               return true;
           } else {
               return false
           }
       }
   }), function(req, res, next) {
       res.send("You picked " + req.params.id);
   });