zendframework/zf2#6896 -  adding missing `@group` annotation
zendframework/zf2#6896 -  adding missing `@group` annotation

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