Flesh out org.scalactic.anyvals.DigitChar
Added Scaladoc to Functor and Monad, and renamed TC to Context.
Renamed Good to AndGood to be consistent with AndBad and to not
conflict with regular Good if that type ever was imported.
A few more ideas about laws testing in OptionLawsSpec.
Add PropertyCheckConfiguration which uses anyvals, and deprecate PropertyCheckConfig.   (Uses PosX.from factory methods, because "you cannot use macro implementations in the same compilation run that defines them".  If scalactic were in a separate compile, this would go away.)
Adapt PropertyCheckConfigSuite into PropertyCheckConfigurationSuite.
Add maxDiscardedFactor factory method and tests.
Add SizeRange and sizeRange, deprecating MaxSize and maxSize.
Change non-deprecated PropertyCheckConfigParam classes to use anyvals.
Ensure all references to PropertyCheckConfig -> PropertyCheckConfiguration and update documentation.
Implement SizeRange in Configuration#getParams
Use private scalatest field indicate whether to use legacy param values.
Separate out PropertyCheckConfigurationHelperSuite.