func newMockSubscriber() mockSubscriber {
	return mockSubscriber{}
}
newMockSubscriber returns a mockSubscriber that is ready to subscribe to a
consensus set. Currently blank, but can be expanded to support more features
in the future.
package consensus
import (
	"sync"
	"testing"
	"github.com/NebulousLabs/Sia/modules"
	bolt "github.com/coreos/bbolt"
)
type mockSubscriber struct {
	updates []modules.ConsensusChange
}