ticket:10545: Added test to verify rounding scientific notation works.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34660 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9101: fix TestGetLocale(), and fix zh_Hant.getLocale(actual); add prefix to new internal Collator methods

git-svn-id: http://source.icu-project.org/repos/icu/icu@34662 251d0590-4201-4cf1-90de-194747b24ca1
ticket:8464: Initial commit of unit test for ICU4C relative dates. Two main english tests done. Still have to add the more specialized tests though.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34665 251d0590-4201-4cf1-90de-194747b24ca1