Update configuration variable. Fix api_key value in example configuration. Have consistent capitalization when referencing Emoncms
* Fix a bunch of typos/spelling mistakes * Removed extra spaces from emulated_hue * Correct device type. of binary_sensor.enocean.markdown
* Documentation for the emoncms_history component. * fix wrong component name reference * increase ha_release: 0.30 * Remove the warning as i removed this 1 second limit * increase harelease to 0.31 and add scan_interval documentation