Don't crash with invalid timezones.
Review Request #6501 — Created Oct. 24, 2014 and submitted
If a user's browser is sending an invalid timezone string, we shouldn't prevent
them from using Review Board.
Ran unit tests.
Review Request #6501 — Created Oct. 24, 2014 and submitted
If a user's browser is sending an invalid timezone string, we shouldn't prevent
them from using Review Board.
Ran unit tests.