Add cd commands to missed script.
Fix compile helper; set PERL5LIB so it loads wc.

Now that I see that this works it might also be a way to fix the debug
script so that it also does the right thing and without having to
install untested code... ;)
Add log dir to error message when opendir fails.
Specify log dir on command line in debug helper.

The config file doesn't work because config isn't loaded until after the
reexec.
Enable debug helper to make its log directory.
Debug the wc module instead of the installed one.

(This probably needs significant testing and debugging...)
Use /usr/bin/env perl as shebang for perlbrew env.

Once installed I think that ExtUtils::MakeMaker will still override this
(I hope) so it shouldn't affect installations.
Build incremented: 0.0.5 => 0.0.6.