[fix] Require CakePHP < 3.4.0 for issue with control().
[fix] Require CakePHP < 3.4.0 for issue with control().

Holt59/cakephp3-bootstrap-helpers,Holt59/cakephp3-bootstrap3-helpers,raul338/cakephp3-bootstrap3-helpers,ypnos-web/cakephp3-bootstrap-helpers