Fix multi-custodians temporarily

[Desrever Nu]

Sub-tickets

• For crypto pairs, reset orders every 3 minutes (sync with NTP) , no matter if price changed
• start counting the 3 minutes when the remote NTP servers clocks an hour
• if price reading fails, keep order down until the next trigger
• When new bot comes online, wait the next third minute
• Do not submit liquidity info on resets
• make it available as an option while maintaining the old shifts (?)
• rename and document the testing wait-before-shift option parameter to something more clear

[Desrever Nu]

@bshares and @pennybreaker : In the worst volatility cases, what is the mean time between two wall shifts with the current bots?

[Ben Rossi]

@desrever I would need to sift through a lot of data to get you that answer, but if it would be useful, I can work on extracting it.

[Sam Griffiths]

code exists in feature/136 branch