Revert "debug script"

This reverts commit 12a957cd7fc602f915e545cc66ace20126ac019c.
Revert "minimal travis test [ci skip]"

This reverts commit e89cd9c364a296088c322d485c484870e8a96cff.
Fix broken Travis build

Delete closing PHP tag from generated config_inc.php

Fixes #17229
Add comment to document added configs' purpose