Merge branch 'hotfix/#6968-#6790-remove-unused-mock-methods'

Close #6968
fix setUp configuration
fix CS
PHPCS fixes for Zend\Http
Merge branch 'hotfix/#6970-zend-view-helper-urlintegrationtest-setup-decoupling' into develop

Close #6970
Merge branch 'cs/#6971-zend-http-psr2-compliance'

Close #6971
Merge branch 'cs/#6971-zend-http-psr2-compliance' into develop

Close #6971
PHPCS fixes for Zend\Json
Merge branch 'cs/#6972-zend-json-psr2-compliance'

Close #6972
Merge branch 'cs/#6972-zend-json-psr2-compliance' into develop

Close #6972
Forward port #6972
PHPCS fixes for Zend\InputFilter
Merge branch 'cs/#6973-zend-inputfilter-psr2-compliance'

Close #6973
Merge branch 'cs/#6973-zend-inputfilter-psr2-compliance' into develop

Close #6973
Forward port #6973
PHPCS fixes for Zend\Form
Merge branch 'hotfix/#6974-zend-form-psr2-compliance'

Close #6974
Merge branch 'hotfix/#6974-zend-form-psr2-compliance' into develop

Close #6974
Forward port #6974
PHPCS fixes for Zend\I18n
Merge branch 'cs/#6975-zend-i18n-psr2-compliance'

Close #6975
Merge branch 'cs/#6975-zend-i18n-psr2-compliance' into develop

Close #6975
Forward port #6975
PHPCS fixes for Zend\Filter