JJB by default ignores paths that start with '.' so take advantage of
that and move our tests there. This way end users do not need to make
any changes to their local environment to handle the new jjb-test
directory.
Change-Id: I9bd85a43d76cf1dfcb02e327f097cd6551366d1b Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>