NOTE: Deluge 0.5.1 uses an unstable build of libtorrent.  This
build differs from a clean libtorrent source checkout and has 
been hacked in order to get it to work properly with Deluge.
As a result, Deluge will likely not build properly against a
vanilla libtorrent 0.12 installation or a nightly build of
libtorrent 0.13.  It is recommended that you build against our
included libtorrent.

 - zachtib