Fix browser issues and revert nat-pmp patch

index.js

@@ -132,7 +132,7 @@ function WebTorrent (opts) {
       var address = self.dht.address()
       if (address) {
         self.dhtPort = address.port
-        if (self._natTraversal) {
+        if (self._natTraversal.portMapping) {
           self._natTraversal.portMapping(self.dhtPort)
         }
       }
@@ -432,7 +432,7 @@ WebTorrent.prototype._destroy = function (err, cb) {
     })
   }
 
-  if (self._natTraversal) {
+  if (self._natTraversal.destroy) {
     tasks.push(function (cb) {
       self._natTraversal.destroy(cb)
     })
@@ -456,7 +456,7 @@ WebTorrent.prototype._onListening = function () {
     var address = this._tcpPool.server.address()
     if (address) {
       this.torrentPort = address.port
-      if (this._natTraversal) {
+      if (this._natTraversal.portMapping) {
         this._natTraversal.portMapping(this.torrentPort)
       }
     }

package.json

@@ -45,7 +45,7 @@
     "memory-chunk-store": "^1.2.0",
     "mime": "^1.3.4",
     "multistream": "^2.0.5",
-    "nat-pmp": "github:yciabaud/node-nat-pmp#patch-1",
+    "nat-pmp": "^1.0.0",
     "nat-upnp": "^1.0.4",
     "network": "^0.3.2",
     "package-json-versionify": "^1.0.2",