proxy support?

[thezoggy]

i noticed that a few years ago a sickbeard user added proxy support to tvdb_api... since then its been nuked during upgrades to newer tvdb_api (dont think others realized it was modified). anyways curious if the type of change is valid to be done in the core of tvdb_api or what.

the original old commit is here:
midgetspy/Sick-Beard@d46740e

after the fact there were some small tweaks which resulted in:
https://github.com/midgetspy/Sick-Beard/blob/f4920025aafe0f617426623755004b1fc0e1be3e/lib/tvdb_api/tvdb_api.py

as you can see its quite old (1.5) but figured I'd share what i found. i know nothing of proxy.. so i cant even begin to say if this is good code/warranted or what.