[bp/r52206][FIX] Certain timezones gone in php5.5 causing fatal error https://bugs.php.net/bug.php?id=66985


git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@52207 b456876b-0849-0410-b77d-98878d47e9d5