Log Message:
Update to nats-1.1.2

1.1.2 [2018-02-06]
* Don't enable Safe on GHC 7.2.

1.1.1
* Backported a more efficient Binary instance for Nat
* Allow binary-0.8

1.1
* Backported Lift instances.

1.0
* Make nats a compat-package since Numeric.Natural moved to base-4.8.0.0.

0.2.1
* Better readsPrec handling when you try to feed it a negative
  number. Note it is a failed parse rather than an error.