ticket:10012: Minor API doc comment update.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34346 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9744: add more known issues, fix #include issue, remove unused output parameter.

also, delete trailing whitespace.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34347 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10379: fixes for IBM i - passes all tests!

git-svn-id: http://source.icu-project.org/repos/icu/icu@34348 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9744: add namespace scope


git-svn-id: http://source.icu-project.org/repos/icu/icu@34349 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10012: Disable EBCDIC Arabic/Hebrew detectors by default. Added APIs to enable/disable each charset and get currently active charsets.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34350 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10012: Delete the work branch.

git-svn-id: http://source.icu-project.org/repos/icu/icu@34352 251d0590-4201-4cf1-90de-194747b24ca1