0.0.9-ih

1. Configuration now using whiptail instead of dialog, whiptail is more widely available.
2. Fallback to very basic CLI config if whiptail not available.
3. Witness node auto-discovery: uses one with least latency on ping
4. Improvements to follow orders bot:
   a. better logging
   b .staggers with a different spread
   c. checks for orders filled immediately on placement
   d. initial draft of graphing, see graph.py

Initial working bot

This release contain one working bot, "follow_orders" which I have successfully used on the AUD:BTS market.
It is not perfect, and will still sell off AUD when the price drops (but at some profit)