• Add get-network-stats command (Issue #7).
• Add get-id-info and get-capabilities commands.
• Change the output of the discover command to include the power line adapter interface.
• Change the output of the get-network-info command to reverse the byte-order of the NID and display the security level.
• Show the version of pla-util when no arguments are provided on command line.
• Improve exception handling.
• Clean up README (Issue #6).