ICP-1047, ICP-1041, ICP-1148, MOB-3388, DVCSMP-2838, DVCSMP-1492, DVCSMP-1014

ICP-1047 - Zen Thermostat doesn't have Temperature unit(C or F).
ICP-1041 - [Zen Thermostat] Fan mode is not displayed in ST Plugin
ICP-1148 - [P170712-02680] Support Thermostat Dynamic data
MOB-3388 - ST app: Zen Thermostat is missing Icon on Android Device
DVCSMP-2838 - Raw Zen Thermostat Setpoint Inconsistent with Device Display
DVCSMP-1492 - Zen Thermostat in Emergency Heat Mode Doesn't Display/Respond
DVCSMP-1014 - Zen thermostat: device handler doesn't handle attribute reports with invalid values
Also changed UI to use multiattribute tile, added battery status, removed config button as it doesn't add any value,
added user configurable thermostat modes in settings page

Author: marstorp