[web] Restructure and fix builds.

web/apps/logdog-view/gulpfile.js

 /*
   Copyright 2016 The LUCI Authors. All rights reserved.
   Use of this source code is governed under the Apache License, Version 2.0
   that can be found in the LICENSE file.
 */
 
 'use strict';
 
 // Include Gulp & tools we'll use
 var gulp = require('gulp');
 var luci = require('../gulp-common.js');
 
-luci.setup(gulp, {
-  dir: __dirname,
-});
+luci.setup(gulp, __dirname, {});