CMLK-130 — KAT sends signal to proxy/ssh server
As a result of a command, KAT is sending signal (with printed number) to a process (with printed PID).
The N-level message is printed when signal requested by user is sent, the W-level message is peinted when SIGKILL is sent to process that has not ended after 10 attempts to send SIGTERM/SIGHUP to it.