Stop quoting everything that is in C<> (we should fold this into
Module::Install::RTx and then we can clean up this Makefile.PL)

Restructure the BUGS section so that long long L<>s can't wrap, although
this adds a lot of whitespace.  This (or some similar variant) belongs
in Dist::Zill::MintingProfile::RTx.

Start auto-generating from the lib file, like we do for most other
extensions these day.  Now the README tells you about the config options
and points you off to the 'one true place' for commands a few times.

2 changes:

* LINKTYPEMAP
* circular links are not allowed

Default is to still look in body, but if you want the module to only
look in the defined header, use Set($CommandByMailOnlyHeaders, 1);

(Based on commit 2b533dc27f6a074b96a39c66379fc150a3f51ede from pr/3.)

[Adjusted tabs — s/\t/    /g — and simplified the $only_headers
conditional. -trs]

Fixes a regression introduced by 33d02398 which caused t/create.t to
start failing (on line 88).

intention of the code is to store original value
in the results, but it was stored incorrectly, so we
end up with two records in results: first with success
and ISO date, second with value only that is treated
as failure.

This allows us to parse a configurable header for commands too, by
setting the CommandByMailHeader setting.