1 - add Dwarn_only { ... } (...) and DwarnS_only { ... } $foo to
2 allow filtering of the data before Dumper-ing it
5 - make sure Devel::Dwarn::Dwarn and Devel::Dwarn::DwarnS work
8 - add Data::Dumper::Concise::Sugar containing Dwarn and DwarnS
10 - add Devel::Dwarn as a more concise alias for ::Sugar
13 - open up non-ref and multiple arguments since I've not seen any other
14 viable use for the additional syntax
17 - more explanation of purpose, limitations and alternatives in the POD
20 - Dumper() returns concise Data::Dumper object
21 - Dumper($ref) returns concisely dumped ref
22 - anything else die()s