Refactor package & improve error logging

-package error_reporter
-
-import(
-  "time"
-  "log"
-  "os"
-  "git.ukko.mx/ukko/influx_client_go.git"
-)
-
-var(
-  defaultUsername = os.Getenv("INFLUX_USERNAME")
-  defaultPassword = os.Getenv("INFLUX_PASSWORD")
-  defaultDbAddress = os.Getenv("INFLUX_DB_ADDRESS")
-  defaultSeries = "errors"
-  influxClient *influx_client.InfluxClient
-  series string
-)
-
-func InitReporting(db string, username string, password string, dbAddress string) {
-  influxClient = influx_client.CreateClient(db, username, password, dbAddress)
-  series = defaultSeries
-}
-
-func InitDefaultReporting(db string) {
-  influxClient = influx_client.CreateClient(db, defaultUsername, defaultPassword, defaultDbAddress)
-  series = defaultSeries
-}
-
-func Report(who string, message string, err error) {
-  log.Fatalf("%s: %s", message, err)
-  tags := errorSystemTags(who, message, err)
-  fields := map[string]interface{}{
-    "value": 1,
-  }
-  stamp := time.Now()
-  influxClient.CreatePoint(series, tags, fields, stamp)
-}
-
-func errorSystemTags(who string, message string, err error) map[string]string {
-  host, _:= os.Hostname()
-  return map[string]string{
-    "hostname": host,
-    "process": who,
-    "message": message,
-    "exception": err.Error(),
-  }
-}