readline.pm: Remove SelfLoader as observed by Clive Holloway. We can then reinstate some of the commented-out my variables. p5Commentary: Separate from readline.pm the older pod commentary. Down the line we should add directory Perl5 and move p5Commentary and readline.pm there.
readline.pm: warnings makes us more careful about using uninitialized variables. 20test-read-input-file.t: require_ok seems to mess up TAP order. test.pl: note undef expression output when it occurs. MANIFEST, MANIFEST.SKIP: track file changes.