nls: Adding more accessible compose sequences for J́ and j́.

Few keyboards have an <acute> key, so this adds the much more
accessible and usual compose sequences with <apostrophe>, ánd
the most comfortable ones with <dead_acute>.

Signed-off-by: Benno Schulenberg <bensberg@justemail.net>
Signed-off-by: James Cloos <cloos@jhcloos.com>