* The KeyboardInterrupt exception is now being caught.
* The USBError exception is now only being caught while reading a command header, which has a maxed out timeout value. This is used as a way to detect if the console has been disconnected.
* An output path can now be passed as the first argument for the script. User home directory and environment variables are expanded, if needed.
* If no path is provided, the script will proceed to create a 'nxdumptool' directory inside the directory where the script is located, and use it to store all the data sent by the console.
Serves the same purpose as the modded ns-usbloader builds. Supports the full USB ABI command set.
Also fixed a small issue related to ES IPC calls not writing the total number of available rights IDs.
