Update wsprdaemon.sh

- Extend wait time to 30 seconds during schedule changes, but still seeing WD listeners on wrong RX 0/1. 
- Prompt user before installing new SW.  Graphs now -165 to -115
- Use /tmp/wsprdaemon/... and move all WD temp files there,
- Verify that the best SNR from the MERGED_RX are 
- Added log output from two checks for GPS lock .  Fix in Kiwi V1.335 seems to fix the 'permanent loss of GPS lock'  problem 
- Added overload (OV) detection and reporting to watchdog.log at verbosity=1 and above
- Added logging of  WD listeners on RX0/1 channel when verbosity > 1

Author: rrobinett