Comment 5 for bug 1606211

Reviewed: https://review.openstack.org/355952
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=c2ae5ea605ac5f119dbac1efb35e344493e60905
Submitter: Jenkins
Branch: stable/mitaka

commit c2ae5ea605ac5f119dbac1efb35e344493e60905
Author: Dmitry Guryanov <email address hidden>
Date: Fri Aug 19 15:25:49 2016 +0300

    Split @content decorator

    Decorator content does too many different actions, so
    let's split it into 3 decorators: @handle_errors,
    @validate and @serialize. We can skip calling @serialize
    in many places, because those methods just raise some
    http error.

    Also I've changed return value of all handlers from
    serialized json (string) to python's structures, lists
    and dicts. So It's become possible to implement different
    serializers and I've added support for YAML output.

    backported from Ia3da3bd809bcca923d53666eca54def78c995f65

    Change-Id: Ia3da3bd809bcca923d53666eca54def78c995f65
    Closes-Bug: #1606211