* Set required PHP version to ^7.2.5

* Write .gitignore into srcBasePath

* Update dependencies

* Copy latest Lumen sources to templates

* Add Lumen license template

* Use Lumen license in templates

* Fix typo in readme

* Add Init App Config readme section

* Add composer.lock to root gitignore

* Add Travis-CI task

* Set OAS 3.0 input spec file for samples

* Refresh samples