kizniche/Mycodo: 5.1.0

5.1.0 (2017-08-07) Some graphs will need to be manually reconfigured after upgrading to 5.1.0. This is due to adding PWM as an output and PID option, necessitating refactoring certain portions of code related to graph display. Features Add PWM support as output (#262) Add PWM support as PID output Add min and max duty cycle options to PWM PID Add "Max Amps" as a general configuration option Improve error reporting for devices and sensors Add ability to power-cycle the DHT11 sensor if 3 consecutive measurements cannot be retrieved (uses power relay option) (#273) Add MH-Z19 CO2 sensor Bugfixes Upgrade to InfluxDB 1.3.1 (#8500 - fixes InfluxDB going unresponsive) Fix K30 sensor modul