ticket:8464: Create branch.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34822 251d0590-4201-4cf1-90de-194747b24ca1
ticket:8464: Remove branch.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34823 251d0590-4201-4cf1-90de-194747b24ca1