angular2: App Example

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

Updates to the `react-backbone` example

We don't use these anymore

For consistency

getDOMNode() has been deprecated. Use React.findDOMNode() instead

typo

just a typo

Ref #1234

Fix `frameworkNamePattern` regex

SAPUI5: remove "completed todos" count

As per request in https://github.com/tastejs/todomvc/issues/1234

dont lint the same example a bunch of times

No big deals but makes sense with the new CI in place

Fix #1324

Ref #1234

The current one didn't match any numbers (such as in the `sapui5` example)

SAPUI5: fix adding new tasks, remove browser-dependent autoselect

The return value of Array.push() was expected to be the resulting array,
but it is the length of the array. Not sure how this ever worked, maybe
Array.push() had been overridden wrongly somewhere.

The browser detection API conflicted with TodoMVC's code checks and is
anyway undesired.

Also update the URL from which SAPUI5 is loaded:
sapui5.hana.ondemand.com is the one to use and is powered by Akamai CDN.

Fixes https://github.com/tastejs/todomvc/issues/1315

Fix #1317

Some readme edits

Many file paths were outdated since we moved around all examples.

For consistency

There was a link to one article instead of the whole site. Kinda sad as the whole site is awesome :)

Ref #1234

Angular: update `package.json`