Suppress most of the harmless VC warnings generated within Boost.
Reduce more warnings generated within boost.
Picked the wrong diff...
Fix lints.
Fix downcasting warnings.
Implement support for 2-digit relative years, and all other absolute years.
Implement parsing year/month strings.
Fix parsing a year.
Start implement some skeleton for more date rules.
Assert that the year-month parser yields the first daty of the month.
Fix broken tests.
Implemented MMM YY date parsing.