Update copyright year on the documentation footer
Update copyright year on the documentation footer

Change-Id: I911d45a32daf476e4416f3e6b9066f769fc2000d
Reviewed-on: http://review.couchbase.org/41316
Tested-by: Mark Nunberg <e7d42768707bf23038325b0b68d4b577e5f6064a@haskalah.org>
Reviewed-by: Volker Mische <fb414f8ac0dbbf87663550ae4ef5fc95b1041941@gmail.com>

mnunberg/couchbase-python-client,mnunberg/couchbase-python-client,couchbase/couchbase-python-client,couchbase/couchbase-python-client