Add definition 5.4.12 - #106

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Update STABLE_DEFINITIONS with 5.3.22 and 5.4.12 - #106

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Update travis.yml to run 5.3.22 and 5.4.12 - #106

Fix #106: Need definitions for 5.4.12 and 5.3.22 final releases

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>