Merge branch 'hotfix/3960'

Clse #3960
Deprecate Zend\Stdlib\DateTime and use \DateTime constructor internally instead
Merge pull request #3951 from DASPRiD/removal/stdlib-datetime

Deprecate Zend\Stdlib\DateTime and use \DateTime constructor internally instead
[#3951] Add error handler for deprecation warning

- Added an error handler to catch the deprecation warning now emitted by
  Zend\Stdlib\DateTime
Merge branch 'feature/3951' into develop

Close #3951