better formatting that aligns vertically messages
pointers to returned args and data need to be checke dbecause memcpy
can't handle them
added some debugging, especially to incseq, test for hashtable just to
be sure it's empty
this check was wrong, it failed when the pointer was good
removed ueseless global variable and an irrelevant comment
removed noisy debugging from sendall and recvall and made size as size_t
since it makes more sense
made formatting of debug messages align verically
moved SIGCHLD handling before if that decides if this is a client or
server since both spawn children processes
fixed debugging messages and removed some redundant ones
split netlink_send_msg into send_msg and send_nlh which takes as
argument netlink header and sends it with confirmation, send_msg just
creates the header for provided payload
added send_nlh for easier netlink header sending, send_msg now just
creates a netlink header and uses send_nlh
made proxy_loop break properly when conneciton is lost
made handle_netlink send messages to the server, for now server just
passes it back