fixed small bug in message parsing
removed cancel message; not implemented in this BT client and added keep-alive message in case timing needs to be done
reading of the bitfield
Merge remote-tracking branch 'origin/Bittorrent_Client2' into Bittorrent_Client2
Merge remote-tracking branch 'origin/Bittorrent_Client2' into Bittorrent_Client2
fixing reading
add unchoking when interested
bitfield sending
method to handle payload in messages