Finished storage compression patch for rsync

[Max Bowsher]

Green, Paul wrote:
> Harald,
>
> You might consider using zlib instead of gzip; same algorithm, same
> author, but you can access the compression code via a subroutine
> interface. You would not have to spawn another process to run gzip,
> and you would not be dependent upon the user having gzip installed.
>
> It is not covered by the GPL but I believe that its license is
> compatible with the GPL. However, I'd welcome a second opinion on
> that.

Well, I presume it is, since it's what rsync uses to implement in-transfer
compression (-z option).

Which means you shouldn't even need to deal with adding it to the rsync
build system.

Max.