update to 0.0.45
    
    - Add python_provide macro to make the switch from Python 2 to
      Python 3 automatic (Resolves: rhbz#1717341).
    - Use "us(intl)" keyboard instead of "us" as the default for af and ZA
      (Resolves: https://github.com/mike-fabian/langtable/issues/9).
    - Add za keyboard layout for nso, tn, ve
      (Resolves: https://github.com/mike-fabian/langtable/issues/10).
    - "us" is a possible layout for "ZA", it is used by default for "zu" for example
    - Return number of failed tests in test_cases.py doctests.