Datepublisher: Add publication dates to add form
Datepublisher: Add publication dates to add form

This fixes a few tests too.

mjl/feincms,hgrimelid/feincms,feincms/feincms,joshuajonah/feincms,matthiask/feincms2-content,matthiask/django-content-editor,mjl/feincms,nickburlett/feincms,nickburlett/feincms,feincms/feincms,michaelkuty/feincms,nickburlett/feincms,pjdelport/feincms,joshuajonah/feincms,matthiask/django-content-editor,matthiask/django-content-editor,mjl/feincms,hgrimelid/feincms,nickburlett/feincms,hgrimelid/feincms,matthiask/django-content-editor,feincms/feincms,matthiask/feincms2-content,pjdelport/feincms,michaelkuty/feincms,joshuajonah/feincms,pjdelport/feincms,matthiask/feincms2-content,joshuajonah/feincms,michaelkuty/feincms,michaelkuty/feincms