update travis to download database and change Go tip to Go 1.2
update travis to download database and change Go tip to Go 1.2

anuaimi/geodns,anuaimi/geodns,anuaimi/geodns,gofort/geodns,abh/geodns,abligh/geodns,gofort/geodns,gofort/geodns,abh/geodns,abligh/geodns,abligh/geodns