move the signal handler setup to handlers

stov

@@ -29,7 +29,6 @@ import sys
 import os
 import smtplib
 import subprocess
-import signal
 import socket
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
@@ -43,21 +42,7 @@ from lib_stov import helpers
 
 
 helpers.initialize_gettext()
-# Define a handler for signals sent to the program
-
-
-def sighandler(signum, frame):
-    """Handler function for signals caught by stov."""
-    if signum == 2:
-        print(_("STRG+C has been pressed, quitting..."), file=sys.stderr)
-    elif signum == 15:
-        print(_("Received SIGTERM, quitting..."), file=sys.stderr)
-    os.killpg(os.getpid(), 1)
-    os.remove("/tmp/stov.lock")
-    sys.exit(0)
-
-signal.signal(signal.SIGTERM, sighandler)
-signal.signal(signal.SIGINT, sighandler)
+helpers.setup_sighandler()
 
 # Overwrite the default OptionParser class so error messages
 # can be localized