I've changed the GnuPGProcesscommand to expose the internal process so that it can be modified in a subclass.

Thanks for the Patch. Generally it's a bit much copy and paste in my opinion without questioning if the pasted code really makes sense for this. While we've talked about not basing it on Gnuprocesscommand I think some of that code is redundant and we should probably change gnupgprocesscommand that it's a useful base class for this. I'll take a look at it.