* - support for PHP 7.1, Zend Expressive 3.2 and PathHander 0.4 for php-ze-ph generator
* - fixed mess with petstore samples (added new files, removed obsolete files)
* php-ze-ph:
- overwriting "*/*" media type for producers with "n/a" (PathHandler does not support that cause it makes no sense to return response with "Content-Type: */*")
- "array" return type declaration for handler methods with ambiguous "container" return type
- better way to generate attribute annotation stub for request body data with ambiguous "container" type
- fixed missing dependency in composer.json
- minor optimization for container.php
- samples for OAS3 petstore spec
* php-ze-ph:
- note about ext-yaml in stub README
- updated .gitignore
* php-ze-ph:
- logging '*/*' replacement as warning
