There is no “new” action.
Memoize previous_state and reduce load time by a third from 7.5s to 2.5s.
It's only required by the tests.
Merge pull request #20 from benpickles/speedy

Reduce load time from 7.5s to 2.5s
Merge pull request #21 from benpickles/timecop

It's only required by the tests.