Support for python 3.x

[Danny Cosson]

pip install fails for me on python 3.5 with:

Collecting shelljob
  Downloading shelljob-0.4.4.tar.gz (57kB)
    100% |████████████████████████████████| 61kB 1.2MB/s
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/private/var/folders/dx/kphmcrmn1p3g989bjnk2kb340000gn/T/pip-build-rlqt7771/shelljob/setup.py", line 9
        except Exception, e:
                        ^
    SyntaxError: invalid syntax

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/dx/kphmcrmn1p3g989bjnk2kb340000gn/T/pip-build-rlqt7771/shelljob

[edA-qa (eda-qa)]

Sorry I never saw this before (my notices appear broken). I'm going to ensure shelljob works with Python 3 now (or create shelljob3)