Merge release 0.5.1 into 0.6.x#23

sandrokeil merged 3 commits into0.6.xopen-code-modeling/json-schema-to-php-ast:0.6.xfrom

0.5.x-merge-up-into-0.6.x_60268f50c99496.70253439open-code-modeling/json-schema-to-php-ast:0.5.x-merge-up-into-0.6.x_60268f50c99496.70253439Copy head branch name to clipboard