Update CHANGELOG
Update CHANGELOG

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