Port printing to use the KContact::Email gadget instead of a wrapper
Summary:
This does change the theme API, however it has no practical effect as all
themes in KAddressbook are using the emails property wrongly anyway and
thus don't show anything either way.
Reviewers: mlaurent
Reviewed By: mlaurent
Subscribers: kde-pim
Tags: KDE PIM
Differential Revision: https://phabricator.kde.org/D20540