Version 0.7.2.0

• Upgraded to stack lts-14.17

Version 0.7.1.0

• Fixed broken examples

Version 0.7.0.0

• Unauthenticated requests are now all in the ClientM monad. CoinbasePro.Request.run is now required to operate in the IO monad.

  Example: run (trades (ProductId "BTC-USD")) >>= print

• Added run_, runSandbox, runSandboxWithManager in CoinbasePro.Request

• Added currencies, fees, and trailingVolume queries