🚀 go-pugleaf

I have recently switched to VM from RMAIL since I think VM is a 
lot better. I have a few suggestions/comments:

(1) It would be nice to have a RMAIL-to-VM translator. I wrote
one myself as I imagine most people have to or they are put off by
the seeming difficulty.

(2) The slightly different key bindings from RMAIl are very confusing
and, I think, unnecessary. Why doesn't 'f' do a 'find' (i.e. same
as your ' '). This is wired into RMAIL, dired and the list-buffer mode
so it should work here to for consistency. Similarly, 'x' should expunge.
I know I can rebind to this, but it should be standard.

(3) Reinvoking 'vm' should check for new messages.

(4) Startup is too slow - maybe that's life.

Gripes aside, I do like it!

And now that we are at the end, how about RMAIL style - insert signature
(with the same key binding!).