Stability fixes and feature rich

This release brings a lot of improvements to the authentication processes.

See CHANGELOG for complete details of updates.

Final (hopefully) release candidate for v0.9.0

Final countdown to v0.9.0

If this is stable then I can go back to working on features instead of fighting the ST platform issues.

[0.9.0-RC6] (Beta Release)

General Changes

• Introduction of support for Child SmartApps! First SmartApp is ecobee Routines for using SmartThings Modes (Routines) to control the modes (and other settings) on the Ecobee Thermostats
• More hooks to be defensive against the SmartThings platform stability issues (e.g. Scheduled Events)

SmartApp Changes

NEW ecobee Routines Child SmartApp

• Control your Ecobee Thermostats based on SmartThings Modes/Routines
• Support for multiple instances for running different options at different modes
• Support for controlling the following options per instance:
  • Multiple SmartThings Modes
  • Multiple Thermostats
  • Select Ecobee Program to run (Away, Home, Sleep or Resume Program) (NOTE: Custom programs are on the wish list for a future release)
  • Select Fan Mode (Optional)
  • Can also be run at Sunrise and/or Sunset event (Optional)
  • Toggle to temporarily disable the Handler so you don't have to delete it when you want it off temporarily

Ecobee (Connect)

• Complete overhaul of the Ecobee (Connect) User Interface to make it easier to manage and to allow for the introduction of the Child SmartApps
• Switched from using atomicState to just state to reduce overhead
• Using helper functions to build JSON bodies for API requests. This should spead up adding new features over time
• Added checks to make sure the customer Device Handlers are installed before proceeding with setup
• Added a Debug Dashboard so that various state variables and functions can be performed right from within the SmartApp. No need to go the IDE just to check things!
• Added some watchdog capabilities to improve reliability of Scheduled Events
• Updated the fan mode handling to not disrupt the existing running event (hold) or program, only changes the fan settings now
• Set several helper function to private so as to not pollute the exposed interfaces
• Thermostats can now also be exposed as individual Remote Sensors so that the actual temperature at the Thermostat can be used for HA

Device Handler Changes

• [Thermostat] Faster response in User Interface (send events immediately when a change is made in app)
• [Thermostat] Defaulting back to the thermostat multiAttributeTile with the release of the 2.0.8 phone apps (Needs Android testing!)