Clean all torrents now only cleans one bucket at a time
All torrents that are being worked upon in an announce are being cleaned on demoand
torrent's peer lists now keep extra counts for seeds and peers to speed up scrape and announce
Sync has gone for now. I will think up a new way to implement. The old one was way to slow.

After studying opentracker live data, I decided to radically reduce default allocation for vectors and making it grow faster instead: Most pools only had one or two peers, wasting 8*15 or 8*14 bytes.

Increase check interval for timeouted sockets to 10 seconds. That may prevent some disrupted scrapes.

since gettimeofday is rather expansive, we do only fetch time once in a 5 second period, when we are delivered a SIGALRM.

* implemented basic blacklisting:
** the file specified with -b <BLACKLIST> is read and added to a blacklist vector
** if an announce hits a torrent in that blacklist vector, add_peer_to_torrent fails
** sending a SIGHUP to the program forces it to reread the blacklists
** the server returns with a 500, which is not exactly nice but does the job for now
** an adaequat "failure reason:" should be delivered... TODO

Added inbound part of sync. This also meant to remove the black/whitelisting as we did by now. A more scalable way to blacklist will follow.

Added outbound part of sync Proposed format: d4:syncd20:<info_hash>8*N:(xxxxyy)*Nee, therefore had to refactor torrent cleanup now that it will hit all torrents once every OT_POOL_TIMEOUT units.

udp is working in theory, return_peers_for_torrent accepts a switch to request an udp answer. Fixed prototypes.

Wasted too much space for minimum element count. Now minimum elements in vektor is 16, it grows and shrinks by a factor of 4 and a shrinking hysteresis of a factor of 5

Introduce another unspec'd command: sync which syncs the most recent peer pool for a torrent out. Do some variable type clean up. Do some code structure clean up.

Documentation improved, some reindenting (again), variable types checked, unnecessary defines removed

Added option to get ip from query string + parser, fixed two bugs concerning grow/shrink of vectors. Now cleans up a torrent BEFORE trying to remove a peer -> this may remove peer already and must be done anyway.