Add a way to add spamfilters to PyLink via IRC commands #640

That would simplify administration a lot, since we actually need to SSH to the shell, edit PyLink configuration file, save the file and rehash PyLink.

Something like !spamfilter [add|del|list] *string* would be a great enhancement.

Probably we'd need to have the spamfilter thing as a separated config file and then have it included in the main config file?

So, when we add/del a spamfilter we can reload the plugin separately?

Cheers!