Fixed: ruby 1.9.3 Time Zone setting Internal error (#10442).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9244 e93f8b46-1217-0410-a6f0-8f06a7374b81

Gemfile

@@ -4,6 +4,7 @@ gem "rails", "2.3.14"
 gem "i18n", "~> 0.4.2"
 gem "coderay", "~> 1.0.0"
 gem "fastercsv", "~> 1.5.0", :platforms => [:mri_18, :mingw_18, :jruby]
+gem "tzinfo", "~> 0.3.31"
 
 # Optional gem for LDAP authentication
 group :ldap do