Merge Debian packaging for release “0.9-1”.

Merge Debian packaging for release “0.9-1”.

* packaging:
  Finalise release “0.9-1”.
  Remove obsolete information about obtaining upstream source.
  Update source URL to new upstream release location.
  Update copyright notices.
  Begin packaging upstream version “0.9”.
  Remove Lintian override for missing UScan configuration.
  Configure UScan for new upstream release location.
  Update my email address for Debian work.
  Set “Homepage” field to new upstream home.
  Declare “Standards-Version: 3.9.8”.
  Document how the source package is built.
  Migrate packaging VCS to Git on NotABug.
  Distinguish license conditions from license grants.
  Update copyright notices.
  Add editor hints to ‘debian/copyright’.
  Declare “Standards-Version: 3.9.7”.
  Set “Homepage” field to URL for encrypted OpenDesktop service.
  Set “VCS-*” fields to URLs for encrypted Alioth services.
  Declare “Standards-Version: 3.9.6”.