Merge branch 'hotfix/#5956-zend-json-server-options-enforced-as-array'

Close #5956
explicitly add properties and corresponding docblocks
[#5651] test module loading, infinite looping, and circular deps
Adding `@group` annotation for tests of #5948
Merge branch 'tests/#5948-circular-dependency-tests-for-module-manager-init' into develop

Close #5948
Forward Port #5948