v2.6.0: EZTV; multiple RSS feeds per group; --dump-groups

This is a big one.  Scheme has been updated, as well, to version 11.
(group-rss-url is now a list).

EZTV parser now works.

The group option :rss-url can now be a list, so you can now combine
two different sites (e.g., TVT and EZTV).

The command line argument --dump-groups is merely a debugging aid for
devs.