Start cleaning up linter errors. (#358)

* Start cleaning up linter errors. For #357

* Fix unmarshalling NullTime values

* More linter fixes

* Remove commented code

* Move defer up

* Consolidate error check lines

* Move error check to make sure row iteration was successful

* Cleaner error check + do not recreate pipe if it exists

* Consolidate hashing to generate client id

geoip/geoip.go

@@ -80,5 +80,4 @@ func FetchGeoForIP(ip string) {
 
 		_geoIPCache[ip] = response
 	}()
-
 }