Use videojs-swf 4.6.0

Temporarily use a newer version of videojs-swf then is included in the mainline video.js release.

@@ -70,7 +70,7 @@
        type="application/x-mpegURL">
   </video>
   <script>
-    videojs.options.flash.swf = 'node_modules/video.js/dist/video-js/video-js.swf';
+    videojs.options.flash.swf = 'node_modules/videojs-swf/dist/video-js.swf';
     // initialize the player
     var player = videojs('video');
   </script>

@@ -43,6 +43,7 @@
   },
   "dependencies": {
     "pkcs7": "^0.2.2",
-    "videojs-contrib-media-sources": "^0.3.0"
+    "videojs-contrib-media-sources": "^0.3.0",
+    "videojs-swf": "^4.6.0"
   }
 }