wmts-from-capabilities example doesn't work because of referer check

It doesn't work because swisstopo wmts server check for the referer and openlayers.github.com is not authorized. This example only work locally since "localhost" referer is authorized.

So we have 2 options:
 * Delete this example,
 * Add a special notice on this example to explain that it will only work locally.

Here is the faulty example:
http://openlayers.github.com/ol3/master/examples/wmts-from-capabilities.html