Release 1.16.2

• Updated Xoroshiro120 to use AUthor's latest parameterization

• Closely synchronized with the version of randomgen being integrated
  into NumPy, including removing:

  • random_raw, which have been moved to the individual basic RNGs
  • random_uintegers, which can be replaced with randint.

• Added RandomState as a clone of NumPy's RandomState.

• Removed LegacyGenerator since this is nolonger needed

• Fixed many small bugs, including in cffi and ctype interfaces