Log Message:
Update to 6.50:

VERSION 6.50  2015-06-01

Bug fixes

Not really a bug, but 6.49 got a bunch of NYTprof data bundled with it
by mistake.  It's been removed.  RT 103252

Fixed a bug where information about whether a date was complete or
truncated was discarded.  Jim Avera

Fixed a bug where SetDate with a zone alias failed.

Added the Format_MMMYYYY config variable to allow the truncated format
mmmYYYY to be parsed instead of mmmDDYY.  David W. Morganwalp and RT 103142

Fixed Makefile.PL/Build.PL to correct for a change on perl on windows
which changes a module prereq requirement.  Alexandr Ciornii

Time zone fixes

Newest zoneinfo data (tzdata 2015d)

Added aliases for older HP-UX time zones.  RT 104141

Documentation fixes

Fixed URL for tzdata.  Mohammad S Anwar

Better POD formats.

Fixed a documentation error.  RT 103966