Comment 4 for bug 1606211

Reviewed: https://review.openstack.org/346957
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=6e31938a0fff264200ddad235ed57398d3ffcb02
Submitter: Jenkins
Branch: master

commit 6e31938a0fff264200ddad235ed57398d3ffcb02
Author: Dmitry Guryanov <email address hidden>
Date: Mon Aug 22 11:46:32 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.

    Change-Id: Ia3da3bd809bcca923d53666eca54def78c995f65
    Closes-Bug: #1606211