Addition of mechanism to opt-out from catalog data during token creation

The additional query parameter: nocatalog in POST /v3/auth/tokens allows
the requestor to receive a token response omitting the catalog data.
This makes the token response sensibly smaller.

Catalog opt-out example:
POST /v3/auth/token?nocatalog

blueprint catalog-optional

Change-Id: I5d41dea842c830f1f9b03cba2b56ebdcc35faa50
Create associations between projects and endpoints

OS-EP-FILTER Extension

There are new methods to create endpoint and project associations
A full CRUD API to assign projects to endpoints as well as
the ability to check all the projects associated with a given
endpoint.

The association is used to understand what endpoints are visible
for the given project and a filtered catalog is built
accordingly

During a project-scoped token request, if project-endpoint
associations have been created, the returned catalog will only
list the project linked endpoints.

blueprint endpoint-filtering

Change-Id: I48ac214ebe1d9e4d47e40b834b81bfa1f6b6eb78
Merge "Create associations between projects and endpoints"
Move OS-EP-FILTER into correct dir

It appears this doc was written when the repo was layed out a bit
differently.

Change-Id: I7c857ae71fa09581bbd11b56c913f6f0354aced2
Updated google analytics number

bug: #1196922

Change-Id: I61b236ace7796185e913f7b624aca1c25f5d3655
author: diane fleming
Update Identity v2.0 spec to show parameters and code examples

bug: #1194997

Change-Id: Ib9a6fabfc2cb4073354b2644210e1193107d8a38
author: diane fleming
Add optional token bind information to identity-api.

Bind information is a dictionary keyed by the mechanism identifier with
a value containing data that is specific to that mechanism.

Required for bp authentication-tied-to-token

Change-Id: I8950540c14d61eecdac4014899a5a69bdcdcc319
Merge "Add optional token bind information to identity-api."
Merge "Move OS-EP-FILTER into correct dir"