Change logs for vistrails source package in Focal

vistrails (3.0~git+9dc22bd-2) unstable; urgency=medium

  * python-vtk6 dependency now replaced by python3-vtk7.
    Closes: #944134
  * Ditto python-matplotlib -> python3-matplotlib

 -- Alastair McKinstry <email address hidden>  Mon, 02 Dec 2019 12:18:09 +0000

vistrails (3.0~git+9dc22bd-1) unstable; urgency=medium

  * Snapshot of python3, Qt5 branch
    Closes: #932942, #935353, #748692, #851421, #938787
  * Standards-Version: 4.4.0; no changes required
  * Move to debhelper-compat (= 12)
  * Move from 'extra' to 'optional'
  * Drop packages.patch ; obsolete
  * Move to pybuild buildsystem
  * Disable tests: port not complete (need package manager finished)
  * Drop custom 'xz' compression

 -- Alastair McKinstry <email address hidden>  Fri, 27 Sep 2019 16:37:23 +0100