- Implement XPClass::isAssignableFrom()
- Add more negative tests for isAssignableFrom()
- Implement Type::isAssignableFrom()
- Implement Primitive::isAssignableFrom()
- Implement ArrayType::isAssignableFrom()
- Also check component type
- Implement MapType::isAssignableFrom()
Merge pull request #249 from thekid/isassignablefrom

Type::isAssignableFrom()
- Announce #249
- Remove isAssignableFrom() local extension method
# Pull request #249 has been implemented, obsoleting this!