Filter out legacy_endpoint_id (bug 1152635)

Change-Id: I176c3f4fec0a1fa544efb11cffd4837dedf8cace
Ensure tokens are revoked for relevant v3 api calls

A number of the v3 apis were not yet revoking tokens that would
be invalidated by their actions, including:

- grant/revoke role
- delete group
- add/remove user to group

A seperate bug has been rasied with regard to revoking tokens when
a role is deleted, since this needs much more plumbing to implement.

Fixes Bug #1093493

Change-Id: Icf0792821829045d5bdecf686ec470ce54f9c9af
Merge "Filter out legacy_endpoint_id (bug 1152635)"
Merge "Ensure tokens are revoked for relevant v3 api calls"