v0.6

Release Notes:

• gw.py: Big overhaul of underlying Python package
  • Action (read, write, update) must come first on the command line
  • eg. "python3 gw.py read --ecyl=39 foo.scp COM3"
• gw.py: New action "delays" to print/set delay parameters
  • eg. "python3 gw.py delays --step=10000" to increase step time to 10ms