2.1.2 / 2014-06-02

• fix: make this an optimizable function with crankshaft

2.1.1 / 2014-04-17

• remove memoization

2.1.0 / 2014-04-17

• add catching of thunk errors

2.0.0 / 2014-04-17

• change to behave like a future (subsequent calls yield the same value)
• remove support for eager execution (breaking change)

1.0.0 / 2014-04-11

• add assert(fn)