Extend test to prove failure on Perl-5.10-32bit

This package is not y2038-proof on (at least) 32bit Perl5.10.1 and below, due to (documented) caveats in Time::Piece. While H:H:ActionPack installs cleanly on those systems, the depending Web::Machine fails tests, where playing with year 2112.

I extended t/050-date.t in the 32bit-date branch to demonstrate the problem. This test (probably) still passes on all Perls 5.12 and above, but now fails on 5.10-32bit (and probably below).

I'm not sure, how to fix the problem appropriatly. The Time::Piece docu suggests DateTime in such cases.