testsuite: add unittests for uReport API

Fixes #294

Signed-off-by: Matej Habrnal <mhabrnal@redhat.com>
testsuite: changed atlocal.in to work with last commit

Added special library libreport-web.la and CFLAGS DEFAULT_DUMP_DIR_MODE.

Signed-off-by: Matej Habrnal <mhabrnal@redhat.com>