Don't request manifests from ourself; also, use the revamped download loop cleanup code.
Don't request manifests from ourself; also, use the revamped download
loop cleanup code.

syndicate-storage/syndicate-core,iychoi/syndicate-core,syndicate-storage/syndicate-core,syndicate-storage/syndicate-core,iychoi/syndicate-core,iychoi/syndicate-core,iychoi/syndicate-core,syndicate-storage/syndicate-core