updated send response workflow
updated send response workflow

- implemented changes proposed by weierophinney
- reverted changes in Console\Response and PhpEnvironment\Response objects
- added Zend\Mvc\View\SendResponseListener extending the new class
- added ResponseListenerFactory
- Response sender triggers events

malinink/zend-http,weierophinney/zend-http,Maks3w/zend-http,asgrim/zend-http,zendframework/zend-http,netroby/zend-http