AUTOTOOLS: Refactor unicode library detection If $libdir is not in default library path libunistring cannot be found. (pkg-config can not be used in this case). This patch helps to search libunistring in "$libdir" directory. In refactoring part, indentation was updated to be more readable and some duplicated parts were removed.

RESPONDER: Ensure that all input strings are valid UTF-8

libipa_hbac: Support case-insensitive comparisons with UTF8