1.add option to track device.lastChanged = last Updated in indigo display. as this is not a regular state, it needed some extra lines of code.

made the extra double __ instead of one _ between names optional. set in config

1. made fully indigo 2022 compatible, ie runs under py3
2. added new name convetion for variables deviceName__stateName__measurement changed from deviceNem_StateName_Measuerment

as device name etc can contain some "_" then it is clear whre device name and sstate names begin ie separated by __ not by a single _

1. fixed / added some menu clarification.

prep for py3

supports - previous value - secs since last change - secs since prev. change

for device/state and or variable

added option to track variables added last value variable

docu at http://forums.indigodomo.com/viewforum.php?f=180

indigo 6