Debounce the rendering of the application view

Tests: add back `persistence` test

* Update to the latest version of the Olives framework.
* Update to the latest version of Emily
* Remove requirejs in favor of browserify
   - also implemented npm scripts and updated the readme

As a result of updating dependencies, this fixes the issue in #1029.

Ref #1029
Close #1242

If we don't debounce "this.render", the app-view will be rendered 4 times on each todo (visible, change, change:complete and sync). So when we try to check globally all todos, this.render is called a hundred times.

In the past we commented out this test because it failed intermittently.
This was simply because the `otherUrl` variable didn't exist and an error
was thrown. Changing `otherUrl` with `about:blank` seemed to fix the issue.

Ref http://en.wikipedia.org/wiki/About_URI_scheme

  "When using anonymous functions, leave a space between the function name and
  opening parenthesis."

https://github.com/tastejs/todomvc/blob/master/codestyle.md#anonymous-functions

Resolves #1270 by moving backbone.history.start invocation

fix for the example source URL

add reagent example

Add FOAM back to labs

Remove completed count from first apps

Updated vue.js to v0.11.8

Updated vue.js to v0.11.6

Fix angular directive bugs