Log Message:
Update ruby-tzinfo to 0.3.46.

== Version 0.3.46 (tzdata v2015g) - 02-Dec-2015

* From version 2015e, the IANA time zone database uses non-ASCII characters in
  country names. Backport the encoding handling from TZInfo::Data to allow
  TZInfo 0.3.x to support Ruby 1.9 (which would otherwise fail with an invalid
  byte sequence error when loading the countries index). Resolves #41.