v0.4.1

New/Breaking:

• Asserts that the GraphQLSchema and GraphQLType types are properly
  constructed, following the "validation" rules defined in the GraphQL Spec
  • Asserts that Objects which claim to implement an Interface actually do.
  • Schema asserts that all included types have unique names.
  • Clearer error messages when incorrect type used in GraphQLType constructors, including List and NonNull type constructors.
  • Asserts that Scalar definitions include serialization functions.
  • Removal of the graphql/type/validation submodule.
• Asserts that the runtime Object type result of an Interface or Union typed
  field is a type is a possible type of that Interface or Union.
• EnumType.getValues() now returns an Array.

Fixes:

• Correctly parse Enum values from variables. #123