Update `react` example to use classes

This includes the change to use classes instead of ids

9429daa2

fix stale element errors

Drop the YUI app

By converting the find and click to a 1 op this avoides the issue of a
stale element.

From the official site:
	"The YUI library is no longer actively maintained. "

We shouldn't suggest anybody to use a framework which isn't active
anymore.

Ref http://yahooeng.tumblr.com/post/96098168666/important-announcement-regarding-yui

✋ bye sauce hello travis

🐛 Fix test routing selector bug

It was seeding too many items, thus making the tests freak out.

IE11 fix for Dojo example, fixes #1349.

Ref #1234

🎅 Update angular to latest

Due to the changes in
https://github.com/angular/angular.js/commit/71fc3f4fa0cd12eff335d57efed7c033554749f4
https://github.com/angular/angular.js/commit/d19504a179355d7801d59a8db0285a1322e04601

xref https://github.com/angular/angular.js/issues/11959

test id => class work

angular2: App Example

Update the FOAM example to the new UI, and also to latest FOAM

Updates to the `react-backbone` example