Merge pull request magento#952 from magento/change-json-library

Added simple-json library to the project distribution

Merge pull request magento#939 from bohdan-harniuk/preparing-release-…

…4-2-2

Updated changelog for release 4.2.2

Merge pull request magento#851 from bohdan-harniuk/4.2.1-pre-release-…

…updates

Additional changes before 4.2.1 release

Merge pull request magento#805 from bohdan-harniuk/preparing-release-…

…4-2-0

Modified CHANGELOG before release 4.2.0

Merge pull request magento#640 from bohdan-harniuk/changelog-modifica…

…tion-before-release-4-1-0

Modified CHANGELOG before release 4.1.0

Merge pull request magento#622 from bohdan-harniuk/code-cleanup-befor…

…e-4-0-0-version-release

Code cleanup before release v4.0.0

Merge pull request magento#580 from magento/576-`Java.lang.IllegalArg…

…umentException`_During_adding_a_new_method_into_an_existing_plugin

Fixed `Java.lang.IllegalArgumentException` During adding a new method…

Merge pull request magento#568 from Iamwade/back-port-fixed-directory…

…-creation-error

Fixed the bug of creating a subdirectory

Merge pull request magento#521 from magento/mainline-entity-manager

Code generator for a Magento Entity

Merge pull request magento#504 from anzin/fix-bug-invalid-check-setup…

…-version

Fixed bug invalid check setup_version