Update version to 0.2.0
Update version to 0.2.0

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