* Added multitorrent support to I2PSnark, accessible currently by running
"i2psnark.jar --config i2psnark.config" (which may or may not exist).
It then joins the swarm for any torrents in ./i2psnark/*.torrent, saving
their data in that directory as well. Removing the .torrent file stops
participation, and it is currently set to seed indefinitely. Completion
is logged to the logger and standard output, with further UI interaction
left to the (work in progress) web UI.
