Add a config check to the nuke function

To make the disabling functionality match what is in the man page for
comitup-cli.

Author: davesteele

comitup/nuke.py

@@ -36,6 +36,7 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
+@checkenabled
 def nuke():
     for ssid in nm.get_all_wifi_connection_ssids():
         nm.del_connection_by_ssid(ssid)