Merge branch '4.x' of https://github.com/wodby/drupal-php into 4.x
Add wkhtmltopdf library
4.10.0 - Base image stability tag updated to 4.9.0 - Added PHP 7.3
Base image stability tag updated to 4.8.2
Base image stability tag updated to 4.8.1
Base image stability tag updated to 4.8.0
Base image stability tag updated to 4.7.4
Base image stability tag updated to 4.7.3
Base image stability tag updated to 4.7.2
Bugfix: incorrect permissions for D8 sync directory