[python-TraitsGUI] (4 commits) ...Initial pseudo merge for dist-git setup

[supercyper]

Summary of changes:

  fc6f7f9... Initialize branch F-13 for python-TraitsGUI (*)
  69ca985... dist-git conversion (*)
  00e958a... New upstream release
  7e38e5f... Initial pseudo merge for dist-git setup

(*) This commit already existed in another branch; no separate mail sent