Fork for Omeka 2.0

Hi,

I upgraded your fork for Omeka 2.0 (see https://github.com/Daniel-KM/Scripto/commits/ui_fork) via a full rebase and do some improvements. Normally, this is fully compatible with the version for Omeka 1.5, except that Dublin Core Audience has been replaced by a specific metadata.

Sincerely,

Daniel Berthereau
Infodoc & Knowledge management