Infrastructure for fatpacking bin/recs into a standalone script
Check in fatlib/ and the fatpacked recs script

We want to keep track of changes to both of them.  The local/ directory
contains arch-specific packlists and paths which must match the current
machine when fatpack runs.  For this reason, we don't keep local/
checked in.

Note that local/, fatlib/, and the fatpacked recs script are all
excluded from the CPAN dists so that they don't increase the dist size
and aren't indexed by PAUSE by mistake.
Add a --version option to recs
Use perlstrip to reduce the size of the fatpacked recs by 33%

Down from 11MB to 7.4MB.
perlstrip'd recs
Specify JSON::PP explicitly when fatpacking

Otherwise it won't be fatpacked when building on Perl 5.14 or higher,
which includes JSON::PP in core.  To support older Perl's, we explicitly
specify it.
Report un-copied but traced modules

This can help local debugging if something unexpected pops up.

For example, it revealed that Date::Manip uses %+ which is a Perl 5.10
feature (via Tie::Hash::NamedCaptures).  Luckily for us, the DM5 backend
doesn't require 5.10.

Modules which are known OK to skip are marked as such.
Tests for the fatpacked recs script