[ANN] Money 3.1.0.pre3

Money 3.1.0.pre3 released

  • added google_currency.gem to list of Currency Exchange
    Implementations
  • updated HKD :subunit_to_unit from 10 to 100 (closes #20)
  • added #(export/import)_rates to Money::bank::VariableExchange (closes
    #21)