Photoshop Persistent Panel sample by Davide Barranca

Hi, I was trying to make persistent panel in Photoshop 14.0, and it was not working, so I have created this minimalistic example by following Davide's blog: http://www.davidebarranca.com/2014/02/html-panels-tips-9-persistence/

The solution to make it work was to upgrade Photoshop to 14.2. I thought it may be useful to keep this in the samples repository.