ticket:10335: Fix tz round trip problems in chr and haw + merge in latest trunk

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/emmons@34201 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10335: Pull in latest trunk

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/emmons@34202 251d0590-4201-4cf1-90de-194747b24ca1