Ecoal boiler (#7707)

* Added components.ecoal_boiler docs.

* Sensors and pumps control for ecoal_boiler.

* Follow configuration layout changes made during component PR review.

* Update 'ha_release'

* Update 'ha_release'

* Delete platform docs

* Remove platform docs

* Add redirects

* Various fixes

source/_components/ecoal_boiler.markdown

@@ -0,0 +1,78 @@
+---
+layout: page
+title: "eCoal water boiler controller"
+description: "Instructions on how to integrate eSterownik.pl eCoal.pl controller into Home Assistant."
+date: 2018-11-29 10:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+# logo: raspberry-pi.png
+ha_category: Water heater
+ha_release: 0.87
+ha_iot_class: "Local Polling"
+redirect_from:
+ - /components/sensor.ecoal_boiler/
+ - /components/switch.ecoal_boiler/
+---
+
+The `ecoal_boiler` component is the base for pumps and sensors managed by [esterownik.pl eCoal boiler controller](https://esterownik.pl/nasze-produkty/ecoal).
+
+## {% linkable_title Configuration %}
+
+To use your eCoal pumps or sensors in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+ecoal_boiler:
+  host: YOUR_IP_ADDRESS
+  username: YOUR_USERNAME
+  password: YOUR_PASSWORD
+  switches:
+    monitored_conditions:
+      - central_heating_pump
+      - central_heating_pump2
+  sensors:
+    monitored_conditions:
+      - outdoor_temp
+      - indoor_temp
+```
+
+{% configuration %}
+host:
+  description: The IP address or the hostname of eCoal controller.
+  required: true
+  type: string
+username:
+  description: Login used to connect to controller.
+  required: false
+  default: admin
+  type: string
+password:
+  description: Password for username.
+  required: false 
+  default: admin
+  type: string
+switches:
+  description: switch-related configuration options
+  required: false
+  type: map
+  keys:
+    monitored_conditions:
+      description: controller available source of switches
+      required: false
+      type: list
+      default: all (`central_heating_pump`, `central_heating_pump2`, `domestic_hot_water_pump`)
+sensors:
+  description: sensor-related configuration options
+  required: false
+  type: map
+  keys:
+    monitored_conditions:
+      description: controller available source of sensors
+      required: false
+      type: list
+      default: all (`outdoor_temp`, `indoor_temp`, `indoor2_temp`, `domestic_hot_water_temp`, `target_domestic_hot_water_temp`, 
+                    `feedwater_in_temp`, `feedwater_out_temp`, `target_feedwater_temp`,
+                    `fuel_feeder_temp`, `exhaust_temp`)
+{% endconfiguration %}