v0.3.0

• ru female patronymics are ordered by length like every other list, so a
  counterexample carrying one shrinks toward a shorter name instead of a longer
  one. The two patronymic lists still hold the same 40 stems but are no longer
  index-aligned — a female form does not grow from the male one by a constant
  suffix, so the two invariants could not both hold. This changes the values a
  given seed produces for Names::middle(Gender::Female), person() and
  full().
• Allows rasuvaeff/property-testing-core ^0.7.