Add negroni-gorelic
Add negroni-gorelic

See https://github.com/jingweno/negroni-gorelic. Thanks for the awesome work!
earlonrails/gorelic,yvasiyarov/gorelic,nazwa/gorelic,courtf/gorelic,zalora/gorelic,rounds/gorelic,jordanshoebox/gorelic,kgrvamsi/gorelic,mruse/gorelic,aniketawati/gorelic,drobune/gorelic,layer123/gorelic-mirror