Please merge topic/johanna/conn-threshold. This branch adds a high-level and a low-level API for connection thresholding (packets or bytes).
The functions that are exposed to users are:
as well as ConnThreshold::delete_bytes_threshold and ConnThreshold::delete_packets_threshold to delete thresholds. Several thresholds can be added for a single connection; all of them will be raised.
The following two events trigger with the thresholds: