switched from grunt to gulp

gulp/build.js

@@ -0,0 +1,13 @@
+var gulp = require('gulp');
+var runSequence = require('run-sequence');
+
+require('./clean');
+require('./requirejs');
+require('./less');
+require('./handlebars');
+require('./copy');
+
+gulp.task('build', function () {
+    return  runSequence('clean',
+        ['requireJs', 'less', 'handlebars', 'copyIndex', 'copyContent']);
+});