Add patterns useful for archiving LiveJournal sites.

The rundown:

livejournal%.com/ljcounter%?: LJ's hit counter thing
%?replyto=%d+: reply-to links that just generate a reply box; useless
               for anonymous archival
xiti%.com/hit%.xiti%?: another hit counter thing
Ignore another "open with reply form" LJ URL.
TwitterTweeter: check for message dups in tweets:done set as well.