Merge pull request #67 from plugwise/feat_#65

2nd part of implementation of feature requested in #65

Author: bouwew

custom_components/plugwise-beta/manifest.json

@@ -2,7 +2,7 @@
   "domain": "plugwise-beta",
   "name": "Plugwise Beta for Home Assistant",
   "documentation": "https://github.com/plugwise/plugwise-beta",
-  "requirements": ["Plugwise_Smile==0.2.10"],
+  "requirements": ["Plugwise_Smile==0.2.11"],
   "dependencies": [],
   "codeowners": ["@CoMPaTech","@bouwew"],
   "config_flow": true

custom_components/plugwise-beta/sensor.py

@@ -78,6 +78,7 @@
     "outdoor_temperature": ATTR_TEMPERATURE,
     "illuminance": ATTR_ILLUMINANCE,
     "water_temperature": ATTR_TEMPERATURE,
+    "return_temperature": ATTR_TEMPERATURE,
     "electricity_consumed_off_peak_point": [
         "Current Consumed Power (off peak)",
         "W",