Now I'm implementing i18n messages for Climate project (Reservation Service) and as I know there are some problems with Transifex now... I've read
http://lists.openstack.org/pipermail/openstack-i18n/2013-November/000322.html and now I really don't know what to do further. I may prepare our project to support translation mechanism in future, but now I cannot create Transifex project for it.