meta: Preferred patch submission policy

[Christoph Biedl]

Greetings,

after not having been very active on this list for some time, I'd like
to contribute to INN a bit, some patches I've created to deal better
with the current spam issues.

But first some meta: What's the preferred way to submit patches
nowadays? Using this list as in the old times - or via PRs on github?
And if the latter, on which branch should I do the work?

While I can do either, I'd prefer to use this list.

    Christoph