[python-matplotlib/f16] (3 commits) ...fix build with new Tkinter which doesn't return an expected value in __version__

[Dan Horák]

Summary of changes:

  aacc152... apply upstream bugfix for timezone formatting (Bug 735677) (*)
  15f4723... apply upstream bugfix for timezone formatting (Bug 735677) (*)
  5446c87... fix build with new Tkinter which doesn't return an expected (*)

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