ticket:10231 add -u option to intltest, force utf-8 output

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33837 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10069 improve error messages, add commented-out case that passes on solaris and fails on others

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33838 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10069 improve error messages"


git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33839 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10025: Update tzcode svn property to not ignore generated files


git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33840 251d0590-4201-4cf1-90de-194747b24ca1