Unicode::Collate 0.53 seems to be the minimum

e.g.
http://www.cpantesters.org/cpan/report/a83de2ca-2287-11e4-997d-b1dbc7ccabfc
http://www.cpantesters.org/cpan/report/4e058148-2285-11e4-9d6c-dd366f2f922a
Git::Wrapper 0.028 blows up badly; 0.029 seems ok, but 0.035 is the minimum for MSWin32
Stop encoding the committer name before sending it to Git::Wrapper

I mistakenly left this line in after working through these tests on MSWin32
with Mithaldu.  Bizarrely, we only get doubly encoded strings back from git on
perls *before* 5.12. I see nothing relevant that changed in IPC::Open3 around
this time, so something else must be going on -- I still need to look at the
exact bytes that are being sent to git in each situation to pinpoint the
problem.