Increase ping timeout, add help command

vm.py

@@ -224,7 +224,7 @@ IP:         {0.ip}
 Username:   {0.user}
 Password:   {0.password}'''.format(instance))
 
-    subprocess.call(['ping', '-c', '1', instance.ip])
+    subprocess.call(['ping', '-c', '1', '-W', '240', instance.ip])
 
 
 def cmd_iplist(args):
@@ -257,12 +257,20 @@ Create missing vMACs for available IPs
             except:
                 logger.exception('Failed!')
 
+def cmd_help(args):
+    '''usage: vm help
+
+ey?
+'''
+    print(__doc__)
+    return 0
 
 
 commands = {
     'create': cmd_create,
     'ip:list': cmd_iplist,
     'ip:sync': cmd_ipsync,
+    'help': cmd_help,
     }
 
 def main(gargv):