//node.js Synchtube client
//Format of a synchtube message is:
// ~m~<msg.length>~m~msg\n
// where msg is :
// ["<msg.cmd>", {"data":{<msg.data>}}]
//
// For example, the unserialized command to join a room (in this case /r/animu) is:
// { cmd : 'join',
//   timestamp : <current timestamp>,
//   roomid    : '56424' }
//
// This is serialized to
// ~m~44~m~["join", {"data":{"timestamp":<current timestamp>, "room_id":56424}}]\n