Add opensuse ubuntu 14.04 compatible owncloud repo

I was getting an error regarding "/var/www/owncloud/data" directory not found on Ubuntu 14.04. The 6.x version of Owncloud in the official repo causes this, and upgrading to 7.0 via the OpenSUSE repo seems to fix it for me.
This would also match Ubuntu 12.04, thus installing 14.04 packages on precise. The test should be `ansible_distribution_release == 'trusty'`. `name` should be extended to include "for Ubuntu Trusty". A similar section should be added to support Ubuntu 12.04, too.