Hello Alan

This is a modified version of call that implements the YAPP file transfer
protocol. I had to modify call.c a little to incorporate the hooks for my
code, but as such my work is essentially contained in call.h and yapp.c. I
am very happy with the YAPP download but the YAPP upload used to suffer from
flow control problems which seem to have been fixed.

I have included the file yappxfer.doc and yappxfer.pas that define the
original YAPP protocol. I have heard that the protocol has been extended to
include restarting of a transfer but I have no data on that. I have tested
the software on my local BBS (GB7HMZ) which runs FBB 5.14d with no protocol
problems.

The new commands for yapp are ~yu and ~yd as you would expect and are
documented in the new manual page. I'm sorry this wasn't ready in time for
AX25016 as it would have been nice to offer some extra functionality in the
call program. I have taken the opportunity to bump your version number up to
1.08 as well, I hope you don't mind.

Jonathan
