ticket:10877: Update branch with ICU trunk.

git-svn-id: http://source.icu-project.org/repos/icu/icu@36649 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10877: Fix BurmeseBreakEngine to match changes in branch to break engines.

git-svn-id: http://source.icu-project.org/repos/icu/icu@36650 251d0590-4201-4cf1-90de-194747b24ca1