Update to work with eZ Publish 4.4 and above

Hi Bertrand

I'm still learning GitHub so please forgive me if I've made any mistakes here. Would you like to pull our changes to this extension?

We've updated the code to make it work with the newest versions of eZ Publish version 4 and added a switch in site.ini to control whether each Chinese character in the pinyin URL is capitalized or not.

Andy