v0.9.6 Fixes bug with handling of None in examples

• v0.9.6
  • Fixes a bug where None values in examples would cause a runtime error.
• v0.9.5
  • Improves how the .components.responses are rendered.
  • Fixes issues with the "static"/"frozen" predefined Schema objects.
• v0.9.4
  • Adds a @doc.responses() to give an easier way of documenting a route.
• v0.9.3
  • Adds a @doc.security() to override security requirements on a route.
  • Removes entries with false values from the spec if false is the default value. This makes the specs smaller in
    in size and are more idiomatic.
• v0.9.2
  • Fixes an issue of rendering SecurityRequirement when there were no entries in the list.