0.11.0

Features:

• Backwards-incompatible: Rework of the ETag feature. It is now accesible
  using dedicated Blueprint.etag decorator. check_etag and set_etag
  are methods of Blueprint and etag.INCLUDE_HEADERS is replaced with
  Blueprint.ETAG_INCLUDE_HEADERS. It is enabled by default (only on views
  decorated with Blueprint.etag) and disabled with ETAG_DISABLED
  application configuration parameter. is_etag_enabled is now private.
• Backwards-incompatible: The response decorator returns a Response
  object rather than a (Response object, status code) tuple. The status
  code is set in the Response object.
• Support apispec 1.0.0b5.