fixed Bug #3869 (rt.cpan.org) reported by
"Mike Depot" mdepot@comcast.netapplied patch by Roland Huss Roland.Huss@consol.de,
which fixes a bug with the -Tie option, sub-hashes of
named blocks were not properly created (in fact, not
tied).added documentation to Interpolated.pm that it does not
interpolate variables in keys, see bug #3773 (rt.cpan.org).