Golang Code Review

Hi Ivan.
First of all thank you for your response. What I wanted to do was maintain a singleton instance of the db handle when the app server comes up. However I did make a mistake which you rightly pointed. I have now modified the code both for the db handle and the geoip db handle to be singletons. https://github.com/anyaddres/supermann/blob/master/geoip/geoip.go#L20 and https://github.com/anyaddres/supermann/blob/master/geoip/geoip.go#L32.
For the db https://github.com/anyaddres/supermann/blob/master/datastore/db.go#L46

Do you see anything else that I might need to change?