[Module::Build] proposed patch for "testauthor" action

[David G. <da...@hy...>]

Following the notion that actions speak louder than words, I offer the 
attached patch against the current CVS head.  (Including test file and 
documentation.)

It provides a "testauthor" action that sets $ENV{AUTHOR_TESTING} to 1 
before running the "test" action.

The name of the action follows the pattern set by "testdb", "testpod", 
"testcover", etc.  The environment variable follows the pattern of 
"AUTOMATED_TESTING" used by the CPAN smoke tests.

The functionality itself took less than 60 seconds to write.  The 
longest part was figuring out how to write a test for it.  (0.29 
wishlist: more test refactoring.)

Regards,
David