Binding.
Add two more articles.
Merge branch 'master' of github.com:tiw/angularjs-tutorial

* 'master' of github.com:tiw/angularjs-tutorial: (21 commits)
  Format code.
  Hide notice after 3 seconds.
  Add notification.
  add ignore files.
  Abstract db into one class.
  Add angularjs ui.
  using strap module(angular bootstrap directives).
  remove debug messages.
  rename file name.
  Adding dialog before deleting product.
  Add confirm dialog before deleting product.
  Add update and delete function.
  Add skeleton for deleting and updating product.
  Show all product. Find product by id.
  abstract crud of product into a separated file.
  Add notification when error occurs.
  Add js may needs.
  Add libs.
  implement rest server with express.
  add source
  ...