Add definition 5.3.26 - #126

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Add definition 5.4.16 - #126

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Update STABLE_DEFINITIONS with 5.3.26 and 5.4.16 - #126

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Update travis.yml to run 5.3.26 and 5.4.16 - #126

Fix #126: Need definitions for 5.4.16 and 5.3.26 final releases

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Merge pull request #127 from rogeriopradoj/fix-126

Fix #126: Need definitions for 5.4.16 and 5.3.26 final releases