Update CHANGELOG
Update CHANGELOG

essen/cowboy,odo/cowboy,noname007/cowboy,essen/cowboy,grahamrhay/cowboy,dangjun625/cowboy,heroku/cowboy,binarin/cowboy,bsmr-erlang/cowboy,manastech/cowboy,276361270/cowboy,callsign-core/cowboy_hybi00,turtleDeng/cowboy,layerhq/cowboy,kivra/cowboy,imdeps/cowboy,ninenines/cowboy,LineMetrics/cowboy,nviennot/cowboy,Reimerei/cowboy,venkateshreddy/cowboy,hairyhum/cowboy,piboye/cowboy,lpgauth/cowboy,sile/cowboy,cad627/cowboy,unisontech/cowboy,omusico/cowboy,pap/cowboy,unisontech/cowboy,acrispin/cowboy,callsign-core/cowboy_hybi00,rabbitmq/cowboy,K2InformaticsGmbH/cowboy,LineMetrics/cowboy,CrankWheel/cowboy,MSch/cowboy,heroku/cowboyku,LineMetrics/cowboy,layerhq/cowboy,lpgauth/cowboy,manastech/cowboy,ferd/cowboyku,rbalint/pkg-erlang-cowboy,bobos/ecweb,yangchengjian/cowboy,paulperegud/cowboy,piboye/cowboy,binarin/cowboy,heroku/cowboy,cad627/cowboy,yangchengjian/cowboy,linearregression/cowboyku