Restore standard constructor in ::Base.

- This is just a service base class, we don't use it in Core.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
I think this is what 'dt' looks like.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Doesn't work.

- 'claim' is not exported through D::T into :App,
	which only use's D::T.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
The $U seems to work... maybe.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Sub::Exporter does not seem to export into_level...

Signed-off-by: Xiong Changnian <xiong@cpan.org>
This is how Sub::Exporter works with into_level.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
... and this is how it works with D::T.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Minimal DTC::Declare.

- ::App::app_execute() still, no clue.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Better $U structure.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Minor code tightening.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
::New kinda sorta works... badly.

Signed-off-by: Xiong Changnian <xiong@cpan.org>
Merge branch 'feature-sub-exporter' into devel

Signed-off-by: Xiong Changnian <xiong@cpan.org>