ticket:11023: merge from branch

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk/source@36425 251d0590-4201-4cf1-90de-194747b24ca1
ticket:11023: build layoutex if enabled..


git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk/source@36427 251d0590-4201-4cf1-90de-194747b24ca1