add some more tests for ADouble. Fix ADouble for equalsTo test
add some more diagnostics info on failure in the ParallelActionInvoker
better handle nulls in ADouble
remove build warnings
AList now supports IEnumerable items (without type)
add support to AbstractMatcher to allow specifying whether null values are allowed or not
Simply Random.Decimal generation
Add Expect.For(..) to provide additional info on failure when used in loops