Release 3.3 (NNCP)

nncp-daemon, nncp-call, nncp-caller check if .seen exists and treat it like file was already downloaded. Possibly it was transferred out-of-bound and remote side needs to be notifier about that.
If higher priority packet is spooled, then nncp-daemon will queue its sending first, interrupting lower priority transmissions.
Simple packet rate limiter added to online-related tools (nncp-daemon, nncp-call, nncp-caller).
Ability to specify niceness with symbolic notation: NORMAL, BULK+10, PRIORITY-5, etc.
Changed default niceness levels: for nncp-exec from 64 to 96, for nncp-freq from 64 to 160, for nncp-file from 196 to 224.