Enum requires python3.4

[benjaminfrank]

I remember you mentioned the enum I used for the delete option requires python 3.4 while you'd like to keep 3.3 compat. I didn't realize enums are that new, we could also use some simple int constants and use them, so python 3.3 should work.

[WhyNotHugo]

I didn't realize enums are that new

Nor did I actually, I only discovered it after running the tests.

I've actually fixed this via 76f279b anyway.

[benjaminfrank]

Cool, didn't notice until today that this is the main repo now (makes sense with the pimutils org though...) and missed the new commits