Apispec

+++++++++++++++++++

Features:

- [apispec.core]: Add ``Spec.to_yaml`` method for serializing to YAML
(:issue:`161`). Thanks :user:`jd`.

+++++++++++++++++++

Features:

- [apispec.core and apispec.ext.marshmallow]: Add limited support for
OpenAPI v3. Pass `openapi_version='3.0.0'` to `Spec` to use it
(:issue:`165`). Thanks :user:`Bangertm`.

+++++++++++++++++++

Features:

- [apispec.core and apispec.ext.marshmallow]: Add `schema_name_resolver`
param to `APISpec` for resolving ref names for marshmallow Schemas.
This is useful when a self-referencing schema is nested within another
schema (:issue:`167`). Thanks :user:`buxx` for the PR.

+++++++++++++++++++

Bug fixes:

- [apispec.ext.flask]: Don't document view methods that aren't included
in ``app.add_url_rule(..., methods=[...]))`` (:issue:`173`). Thanks :user:`ukaratay`.

+++++++++++++++++++

Features:

- [apispec.core]: Add ``register_operation_helper``.

Bug fixes:

- Order of plugins does not matter (:issue:`136`).

Thanks :user:`yoichi` for these changes.

+++++++++++++++++++

Features:

- [apispec.ext.marshmallow]: Generate "enum" property with single entry
when the ``validate.Equal`` validator is used (:issue:`155`). Thanks
:user:`Bangertm` for the suggestion and PR.

Bug fixes:

- Allow OPTIONS to be documented (:issue:`162`). Thanks :user:`buxx` for
the PR.
- Fix regression from 0.25.3 that caused a ``KeyError`` (:issue:`163`). Thanks
:user:`yoichi`.