Workaround for a weird bug with newer versions of pytz, which fails when `utcoffset()` gets passed a `None` argument. Which it shouldn't be getting in the first place.
Workaround for a weird bug with newer versions of pytz, which fails when `utcoffset()` gets passed a `None` argument. Which it shouldn't be getting in the first place.


git-svn-id: c0ffdcf8c2e87c8872995a0c731507214cc45958@500 59ecc08e-a131-0410-9ea7-d4c0f28ac310

miracle2k/babel,miracle2k/babel,Phaiax/python-babel,cc-archive/babel,joshfinnie/Babel,joshfinnie/Babel,mbr/Babel-CLDR,Phaiax/python-babel,cc-archive/babel,mbr/Babel-CLDR