Exit with fatal message rather than panic, fixes #24

Author: ibnesayeed

server.go

@@ -49,8 +49,8 @@ func main() {
 	var err error
 	cfg, err = initConfig(os.Getenv("GOLANG_ENV"))
 	if err != nil {
-		// panic if the server is missing a vital configuration detail
-		panic(fmt.Errorf("server configuration error: %s", err.Error()))
+		// fatal if the server is missing a vital configuration detail
+		log.Fatal(fmt.Errorf("server configuration error: %s", err.Error()))
 	}
 
 	go func() {