* Adding incomplete PeerConnectionSeed.
* For every new peer connection it would traverse the local bitfield
to check if it was zero'ed, instead of using a cached value. Forgot to
change over when changing it from the BitFieldExt to the normal class.
git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@547 e378c898-3ddf-0310-93e7-cc216c733640