Override range for week-of-year.
Remove getValue() of(), unused.
Missing chronology throws NPE
getChronology now returns AccountingChronology.
Remove assignment to unused variable.
Simplify date math slightly.
Add tests for failures for out-of-range weeks->month conversion.
Change leapWeekInPeriod->leapWeekInMonth in tests.
Correct documentation for era start range.
Remove old documentation.
Add tests for date.range()