CHANGES
Changes from 1.000 to 1.001:
* Debug statements {en,dis}abled by variable instead of comments.
* Debug statement formats changed.
* More of the modern tied array methods for efficiency.
* use Env::Array { DEBUG => 1}, ... for setting behavior flags.
* README produced by pod2text on Array.pm.
* test.pl now also does use Env qw(PATH) and prints the results.