Remove debug reloading

[stephen]

Should get rid of these "reloads" of debug after it's supported (debug-js/debug#150)

• https://github.com/stephen/nodetunes/blob/master/lib/rtsp.js#L13
• https://github.com/stephen/nodetunes/blob/master/lib/server.js#L24
• https://github.com/stephen/nodetunes/blob/master/lib/rtp.js#L11