this also extend dry run to provide env refs to it. the refactoring was
to enable that bit. Having the ability to dry run with the env ref entries
means we can dry run the pkg with the env ref values to see the impact before
the application takes place.
this is the last step for pkger to follow the service definition pattern
that is in the works. Some bits from http were moved into kit/transport/http
for reusability. End result is to hopefully axe http pkg for resuable types in
kit. Long ways off still...
Johnny Steenbergen