Added changelog
Added changelog

vrkansagara/http,phly/http,Maks3w/zend-diactoros,mtymek/zend-diactoros,jguittard/zend-diactoros,PatidarWeb/http,deepfreeze/zend-diactoros,Ocramius/zend-diactoros,mnapoli/zend-diactoros,localheinz/zend-diactoros