P2: Add multiplayer session

public/src/js/main.js

@@ -58,7 +58,7 @@ var fullScreenSupported = "requestFullscreen" in root || "webkitRequestFullscree
 
 var pageEvents = new PageEvents()
 var snd = {}
-var p2
+var p2 = new P2Connection()
 var disableBlur = false
 var cancelTouch = true
 var lastHeight
@@ -98,6 +98,11 @@ pageEvents.keyAdd(debugObj, "all", "down", event => {
 		debugObj.controller.restartSong()
 	}
 })
+if(location.hash.length === 6){
+	p2.hashLock = true
+}else{
+	p2.hash("")
+}
 
 var loader = new Loader(() => {
 	new Titlescreen()