cleanup of uses of crypt_sel
renamed allnetx back to astart, but all in one executable
fixed an off-by-one bug
added key generation in the background to keyd.c
added Wes Peterson to AUTHORS
added background generation of spare keys
added a simple packet sniffer, allnet-sniffer
slightly improved packet presentation in sniffer
added stream option to {init,create}_packet
improved astop
lib: constify allnet_verify, create_packet and init_packet
voa: generate stream id for every stream
voa: initial stab at validating signatures

messages aren't actually signed yet
voa: use correct allnet_header size macro