New upstream release

- d/copyright: update
  - symbols file: update
  - tests, ostree-tests.install: update for new location of tests
  - d/control: ostree-tests now needs python-yaml

debian/copyright

@@ -6,14 +6,15 @@ Files: *
 Copyright:
  © 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
  © 1999-2000, 2002-2005 Free Software Foundation, Inc.
- © 2010-2016 Red Hat, Inc
+ © 1999-2003 Ximian, Inc.
+ © 2008-2017 Red Hat, Inc
  © 2011-2017 Colin Walters <walters@verbum.org>
  © 2011 Avery Pennarun
  © 2013 Collabora Ltd.
  © 2013 Stef Walter <stef@redhat.com>
  © 2013 Javier Martinez <javier.martinez@collabora.co.uk>
  © 2013 Jeremy Whiting <jeremy.whiting@collabora.com>
- © 2013 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
+ © 2013-2016 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
  © 2014-2016 Alexander Larsson <alexl@redhat.com>
  © 2014 Owen Taylor <otaylor@redhat.com>
  © 2015 Dan Nicholson <nicholson@endlessm.com>