mGuard

Right now, the parser constructs attribute, stream, and requester name trees based on the names listed in the available-streams file.

If we can pass these names to the parser via the certificates the controller is configured with, a system administrator will not need to manually add these names to the available-streams file. However, a malicious certificate could cause ABE policies to be written for that malicious requester.

If we use the available-streams file, malicious certs that are loaded in the controller do not add requesters to policies.

We should also change the name of this file, regardless of internal changes.