MDM script correction

I seems to have seen that `caffeinate` is not really stopped, so I added `pkill caffeinate`.

MDM/MDMMosyle install.sh

@@ -14,6 +14,7 @@ what="handbrake theunarchiver microsoftoffice365"
 caffeinatepid=$!
 caffexit () {
     kill "$caffeinatepid"
+    pkill caffeinate
     exit $1
 }