more ideomatic implementation, IMHO

[oec]

Hey Alessandro,

I got distracted by other tasks, coming back very late with this pull request we discussed earlier (sometime in July!). However, I'm not sure you are going to like it, as it changes quite a bit of the code:

• rename package-name from 'goradius' -> 'radius'
• initialization now with radius.New(server, port, pass)
• AuthenticatorT is now named Authenticator
• Authenticator struct exposes timeout and retries-attributes, so they can be changed
• retry is actually implemented now
• parsing the response correctly had been fixed in the meantime by some other contributor, but I have a different fix (which is shorter, I believe)
• some things are more go-ideomatic, I think, but that is rather a matter of taste

Maybe you want to give it a try, or just stick with your (working!) version. As I said, for me it is more a matter of honoring your efforts by sharing my implementation.

Cheers,
Özgür