A previous commit added a helper function for sending JSON data back to
the client.
This commit makes use of it for homogenizing the current implementation.
It also renames the existing helper message to send JSON errors to
starts with "send" because the new helper starts with it and they
helpers are clearer with their name starting with it.
Change-Id: I53ee0b4ca33d677a8ccd366c9ba6d73f4f472247
This change allows the creation and deletion of api keys via the admin API.
It adds two methods for deletion, one via the name and projectID and the
second one via the serialized apikey directly.
Change-Id: Ida8aa729e716db58c671a901e5f7e39253e89a0d