Wrong model titles for primitive datatypes

[McShelby]

Using primitive datatypes as a base for own datatypes, doesn't render the title attribute.

Definition:

swagger: 2.0
...
definitions:
  ModelInteger:
    title: My Integer Title
    type: integer
  ModelObject:
    title: My Object Title
    type: object

Expected result:

My Integer Title
My Object Title

Current result (3.1.7):

ModelInteger
My Object Title