Add ui method to set --ssh/--remotecmd, use it in init/clone/pull/push/in/out. The only user visible change is that 'hg init' now accepts this options, too.

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test -d "1000000 0"
hg history
hg manifest
hg cat a
hg verify