build: upgrade material to latest version of angular-cli (#293)

And remove the unnecessary parts.

angular-cli-build.js

@@ -0,0 +1,36 @@
+'use strict';
+const fs = require('fs');
+const path = require('path');
+
+// Import the require hook. Enables us to require TS files natively.
+require('ts-node/register');
+
+
+const Angular2App = require('angular-cli/lib/broccoli/angular2-app');
+const Funnel = require('broccoli-funnel');
+const MergeTree = require('broccoli-merge-trees');
+const autoPrefixerTree = require('broccoli-autoprefixer');
+
+
+module.exports = function(defaults) {
+  var angularAppTree = new Angular2App(defaults, {
+    sourceDir: 'src/',
+    sassCompiler: {
+      includePaths: [
+        'src/core/style'
+      ]
+    },
+    vendorNpmFiles: []
+  });
+
+  const ngTree = angularAppTree.toTree();
+  const cssAutoprefixed = autoPrefixerTree(new Funnel(ngTree, {
+    include: [ '**/*.css' ]
+  }));
+
+  return new MergeTree([
+    new Funnel('src', { include: ['**/*.scss']}),
+    angularAppTree.toTree(),
+    cssAutoprefixed
+  ], { overwrite: true });
+};