Add support for looking up non-English time zone names to the windows names, then checking Olsen database. Also, raise a better error if this fails. See #3811
Add support for looking up non-English time zone names to the windows names, then checking Olsen database. Also, raise a better error if this fails. See #3811

git-svn-id: 1d840a3b9de75aedc936277cea44c75870a5fe65@11493 25043fe6-1616-0410-a82d-ba8f324cfe61

davidfraser/python-datetime-tz,dave42/python-datetime-tz,j5int/python-datetime-tz,davidfraser/python-datetime-tz,mithro/python-datetime-tz,matthewhampton/python-datetime-tz,j5int/python-datetime-tz,mithro/python-datetime-tz