feat: Bring libp2p-websocket-star to the Transports family! 🌟 (#122)

* test: add libp2p-websocket-star tests

* refactor: websocket-star-{signal => rendezvous}

* misc: Apply requested changes

* chore: update deps

* refactor: considerable amount of refactor, clean up test structure

* use right flag

* test: refactor transport tests

test/utils/bundle.browser.js

@@ -0,0 +1,74 @@
+'use strict'
+
+const WS = require('libp2p-websockets')
+const WebRTCStar = require('libp2p-webrtc-star')
+const WebSocketStar = require('libp2p-websocket-star')
+const spdy = require('libp2p-spdy')
+const multiplex = require('libp2p-multiplex')
+const secio = require('libp2p-secio')
+const Railing = require('libp2p-railing')
+const libp2p = require('../..')
+
+function mapMuxers (list) {
+  return list.map((pref) => {
+    if (typeof pref !== 'string') {
+      return pref
+    }
+    switch (pref.trim().toLowerCase()) {
+      case 'spdy':
+        return spdy
+      case 'multiplex':
+        return multiplex
+      default:
+        throw new Error(pref + ' muxer not available')
+    }
+  })
+}
+
+function getMuxers (options) {
+  if (options) {
+    return mapMuxers(options)
+  } else {
+    return [multiplex, spdy]
+  }
+}
+
+class Node extends libp2p {
+  constructor (peerInfo, peerBook, options) {
+    options = options || {}
+    const webRTCStar = new WebRTCStar()
+    const wsStar = new WebSocketStar()
+
+    const modules = {
+      transport: [
+        new WS(),
+        webRTCStar,
+        wsStar
+      ],
+      connection: {
+        muxer: getMuxers(options.muxer),
+        crypto: [
+          secio
+        ]
+      },
+      discovery: []
+    }
+
+    if (options.webRTCStar) {
+      modules.discovery.push(webRTCStar.discovery)
+    }
+
+    if (options.wsStar) {
+      modules.discovery.push(wsStar.discovery)
+    }
+
+    if (options.bootstrap) {
+      const r = new Railing(options.bootstrap)
+      modules.discovery.push(r)
+    }
+
+    super(modules, peerInfo, peerBook, options)
+  }
+}
+
+module.exports = Node