updated release notes for 0.7.0
updated release notes for 0.7.0

cujojs/curl,runt18/curl,djkost85/curl-1,marian-r/curl,dfd07d/curl,jaredcacurak/curl,dfd07d/curl,dfd07d/curl,runt18/curl,marian-r/curl,vtex/curl,jaredcacurak/curl,djkost85/curl-1,djkost85/curl-1,cujojs/curl,runt18/curl,vtex/curl,cujojs/curl,vtex/curl,jaredcacurak/curl,marian-r/curl