Ubuntu xenial 16.04 added

Hi,

with today's PostgreSQL releases, we have the server packages also
built for Ubuntu's upcoming LTS release called "xenial".

All future package builds will include xenial binaries. If you need
something built now, let us know on the mailing list or on
#postgresql-apt on freenode.

Christoph

PS: pgsql-www: Please update the dropdown box on
http://www.postgresql.org/download/linux/ubuntu/
Thanks!