[WIP] Ezp 23744 date edit for old browsers

WORK IN PROGRESS

## TODO

CSS
Tests not working with phantom.js ( but work on browsers )
Tests might miss ( example : calendar tap to select date )
this is kind of misleading, as the only thing we have proven here is that browser most likely support type=date, and not that browser supports all of html5. So maybe call this "supportHtml5DateInputType" or something, @dpobel what do you think?