refactor(build): simplify and modularize

simplify:
- use same html file for dart and JS
- build benchmarks automatically when doing `gulp build`
- centralize configuration

modularize:
- move all build tasks into separate node.js modules under
  `tools/build`.

changes:
- the `build` folder is now the `dist` folder

Closes #284

modules/benchmarks/src/compiler/benchmark.dart

@@ -1,9 +0,0 @@
-library compiler_benchmark;
-
-import './selector_benchmark.dart' as sbm;
-import './compiler_benchmark.dart' as cbm;
-
-main () {
-  sbm.main();
-  cbm.main();
-}

modules/benchmarks/src/compiler/benchmark.es5

@@ -1,8 +0,0 @@
-Promise.all([
-  System.import('benchmarks/compiler/selector_benchmark'),
-  System.import('benchmarks/compiler/compiler_benchmark')
-]).then(function (benchmarks) {
-  benchmarks.forEach(function(bm) {
-    bm.main();
-  });
-}, console.log.bind(console));

modules/benchmarks/src/compiler/bp.conf.es5

@@ -1,11 +0,0 @@
-module.exports = function(config) {
-  config.set({
-    scripts: [
-      {src: '/js/traceur-runtime.js'},
-      {src: '/js/es6-module-loader-sans-promises.src.js'},
-      {src: '/js/extension-register.js'},
-      {src: 'register_system.js'},
-      {src: 'benchmark.js'}
-    ]
-  });
-};

modules/benchmarks/src/compiler/compiler_benchmark.js

@@ -1,7 +1,7 @@
-import {benchmark, benchmarkStep} from '../benchpress';
+import {benchmark, benchmarkStep} from 'benchpress/benchpress';
 
 import {DOM, document} from 'facade/dom';
-import {isBlank} from 'facade/lang';
+import {isBlank, Type} from 'facade/lang';
 import {MapWrapper} from 'facade/collection';
 import {AnnotatedType} from 'core/compiler/annotated_type';
 
@@ -61,7 +61,7 @@ function setup() {
   });
 
   reflector.registerGetters({
-    "inter0": (a) => a.inter0, "inter1": (a) => a.inter1, 
+    "inter0": (a) => a.inter0, "inter1": (a) => a.inter1,
     "inter2": (a) => a.inter2, "inter3": (a) => a.inter3, "inter4": (a) => a.inter4,
 
     "value0": (a) => a.value0, "value1": (a) => a.value1,
@@ -111,7 +111,7 @@ export function main() {
   benchmark(`instantiate 5*${COUNT} element with bindings`, function() {
     var template = loadTemplate('templateWithBindings', COUNT);
     var protoView = compiler.compileWithCache(null, annotatedComponent, template);
-    var rootRecordRange = new ProtoRecordRange().instantiate(null, new Object());
+    var rootRecordRange = new ProtoRecordRange().instantiate(null, null);
 
     benchmarkStep('run', function() {
       var view = protoView.instantiate(null, null, null);

modules/benchmarks/src/compiler/main.html

@@ -1,3 +1,5 @@
+$SCRIPTS$
+
 <template id="templateNoBindings">
   <div class="class0 class1 class2 class3 class4 " nodir0="" attr0="value0" nodir1="" attr1="value1" nodir2="" attr2="value2" nodir3="" attr3="value3" nodir4="" attr4="value4">
     <div class="class0 class1 class2 class3 class4 " nodir0="" attr0="value0" nodir1="" attr1="value1" nodir2="" attr2="value2" nodir3="" attr3="value3" nodir4="" attr4="value4">

modules/benchmarks/src/compiler/main.js

@@ -0,0 +1,7 @@
+import * as sbm from './selector_benchmark';
+import * as cbm from './compiler_benchmark';
+
+export function main() {
+  sbm.main();
+  cbm.main();
+}

modules/benchmarks/src/compiler/register_system.es5

@@ -1,11 +0,0 @@
-System.paths = {
-  'core/*': '/js/core/lib/*.js',
-  'change_detection/*': '/js/change_detection/lib/*.js',
-  'facade/*': '/js/facade/lib/*.js',
-  'di/*': '/js/di/lib/*.js',
-  'rtts_assert/*': '/js/rtts_assert/lib/*.js',
-  'test_lib/*': '/js/test_lib/lib/*.js',
-  'benchmarks/*': '/js/benchmarks/lib/*.js',
-  'reflection/*': '/js/reflection/lib/*.js'
-};
-register(System);

modules/benchmarks/src/compiler/selector_benchmark.js

@@ -1,4 +1,4 @@
-import {benchmark, benchmarkStep} from '../benchpress';
+import {benchmark, benchmarkStep} from 'benchpress/benchpress';
 
 import {SelectorMatcher} from "core/compiler/selector";
 import {CssSelector} from "core/compiler/selector";