feat(web-server): disable gzip compression

With big files, the gzip compression is causing to serve only parts (chunks) of a file, as browser probably cancels the request at some timeout.

See #778 for a discussion. I saw similar issues on AngularJS build couple of times too.

Doing gzip compression on the fly is not a good idea. The compress module is more likely to be removed from express/connect.

If we wanna do gzip compression, we should probably do it as a preprocessor, so that it happens only once per file.

lib/web-server.js

@@ -42,17 +42,9 @@ var createWebServer = function(injector, emitter) {
     filesPromise: ['value', filesPromise]
   }]);
 
-  // TODO(vojta): remove if https://github.com/senchalabs/connect/pull/850 gets merged
-  var compressOptions = {
-    filter: function(req, res){
-      return (/json|text|javascript|dart/).test(res.getHeader('Content-Type'));
-    }
-  };
-
   var proxyMiddlewareInstance = injector.invoke(proxyMiddleware.create);
 
   var handler = connect()
-      .use(connect.compress(compressOptions))
       .use(injector.invoke(runnerMiddleware.create))
       .use(injector.invoke(karmaMiddleware.create))
       .use(injector.invoke(sourceFilesMiddleware.create))