Mapping nullable Guids fails

[FilipFilipov]

If you call MapDynamic for a value where a string should be converted to a Guid?, you get a System.Exception : Invalid cast from 'System.String' to 'System.Guid'. I looked through the code and the GuidConverter's CanConvert method indeed does not check for nullable Guids.

[FilipFilipov]

Also in ConvertValuesTypeToMembersType you should probably check if the member type is nullable with the same underlying type as the valu, so you don't try to convert a Guid to a Guid? for example.

[randyburden]

The fix for this has been released in v2.0.2 and pushed to NuGet