Add note about unsupported filetypes

package.json

@@ -2,7 +2,7 @@
   "author": "Calvin Montgomery",
   "name": "CyTube",
   "description": "Online media synchronizer and chat",
-  "version": "3.56.1",
+  "version": "3.56.2",
   "repository": {
     "url": "http://github.com/calzoneman/sync"
   },

www/js/util.js

@@ -1451,7 +1451,9 @@ function parseMediaLink(url) {
             Callbacks.queueFail({
                 link: url,
                 msg: "The file you are attempting to queue does not match the supported " +
-                     "file extensions mp4, flv, webm, ogg, ogv, mp3, mov, m4a."
+                     "file extensions mp4, flv, webm, ogg, ogv, mp3, mov, m4a. " +
+                     "For more information about why other filetypes are not supported, " +
+                     "see https://git.io/va9g9"
             });
             // Lol I forgot about this hack
             throw new Error("ERROR_QUEUE_UNSUPPORTED_EXTENSION");