TravisCI tweaks
TravisCI tweaks

* Disable sudo
* Add PHP 7.3 to the matrix
* Allow failures on PHP 7.3
* Better control of conditional script executions
* Added creation of the directories in build for coverage reports

QoboLtd/project-template-cakephp,QoboLtd/project-template-cakephp,QoboLtd/project-template-cakephp,QoboLtd/project-template,QoboLtd/project-template,QoboLtd/project-template-wordpress,QoboLtd/project-template-cakephp,QoboLtd/project-template-cakephp,QoboLtd/project-template,QoboLtd/project-template-wordpress,QoboLtd/project-template-wordpress,QoboLtd/project-template-wordpress