Log Message:
3.9.0 - 2017-05-19
This is feature release, expanding the capabilities of the decimals strategy.
* The new (optional) places argument allows you to generate decimals with a \ 
certain number of places (e.g. cents, thousandths, satoshis).
* If allow_infinity is None, setting min_bound no longer excludes positive \ 
infinity and setting max_value no longer excludes negative infinity.
* All of NaN, -Nan, sNaN, and -sNaN may now be drawn if allow_nan is True, or if \ 
allow_nan is None and min_value or max_value is None.
* min_value and max_value may be given as decimal strings, e.g. "1.234".