Remove web-socket-js and use MozWebSocket when present.

Also remove Flash note in README. Fixes #1.

README.markdown

@@ -9,7 +9,6 @@ An example of using Cucumber to test WebSocket interactions between two users.
 
 ## Notes
 
-* Firefox, the default browser for Selenium in Capybara, doesn't support WebSocket by default. Please ensure you have Flash installed in Firefox to allow [web-socket-js](https://github.com/gimite/web-socket-js) to function properly.
 * If you have the latest version of Qt you can use [capybara-webkit](https://github.com/thoughtbot/capybara-webkit) instead of Selenium. Which also means you can remove the need for the Flash fallback.
 
 ## Credits

app/helpers/application_helper.rb

@@ -6,8 +6,4 @@ def javascript_include_tag_for_jquery
       javascript_include_tag 'vendor/jquery-1.7.1.min.js'
     end
   end
-
-  def flash_movie_path(source)
-    asset_paths.compute_public_path(source, 'flash')
-  end
 end

app/views/shared/_javascript.html.erb

@@ -1,9 +1,6 @@
 <script>
-if (typeof WebSocket == 'undefined') {
-  WEB_SOCKET_SWF_LOCATION = '<%= flash_movie_path "WebSocketMain.swf" %>';
-
-  document.write('<script src="<%= javascript_path "vendor/web-socket-js/swfobject.js" %>"><\/script>');
-  document.write('<script src="<%= javascript_path "vendor/web-socket-js/web_socket.js" %>"><\/script>');
+if (!window.WebSocket && window.MozWebSocket) {
+  window.WebSocket = window.MozWebSocket;
 }
 </script>
 <%= javascript_include_tag_for_jquery %>