Add 0.15 release blog post

source/_posts/2016-03-12-z-wave-pep257-templated-service-calls.markdown

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+---
+layout: post
+title: "0.15: Unforked Open Z-Wave, templated service calls, extended scene support and PEP257 compliance."
+description: "Home Assistant 0.15 has arrived."
+date: 2016-03-12 10:55:00 -0800
+date_formatted: "March 12, 2016"
+author: Paulus Schoutsen
+author_twitter: balloob
+comments: true
+categories: Release-Notes
+---
+
+Two weeks has past so here is 0.15! We have been focussing a lot on quality. Making sure the system is more stable and reliable. I usually try to highlight one cool thing in the release notes but this release has 4 exciting announcements!
+
+ - [@fabaff] has upgraded the codebase to follow the PEP257 documentation standard.
+ - [@partofthething] has migrated us to use the main Python Open Z-Wave library instead of our forked version.
+ - To make our automations more powerful, [@persandstrom] added the option to use templates to dynamically create service calls. This works for automation, script, Alexa, universal media player, template switch.
+ - [@MartinHjelmare] has upgraded our scene support to now support all built-in services and components.
+
+Besides bug fixes, this release also brings:
+
+<img src='/images/supported_brands/hunter-douglas-powerview.png' style='clear: right; margin-left: 5px; border:none; box-shadow: none; float: right; margin-bottom: 16px;' width='150' />
+
+ - Scene: Converted to a platform based component ([@sander76])
+ - Scene: [Hunter Douglas Powerview] now supported ([@sander76])
+ - Lock: [MQTT] platform added ([@fabaff])
+ - Device Tracker: [OwnTracks] will allow filtering inaccurate GPS locations ([@HydrelioxGitHub])
+ - Binary Sensor: Wemo Motion now supported ([@pavoni], [@ryanlaux])
+
+```yaml
+# Example using templates for service and data in service call.
+# Works for automation, script, Alexa, universal media player, template switch.
+automation:
+  - trigger:
+      - platform: state
+        entity_id: switch.bathroom
+    action:
+      service_template: >
+        {% if is_state('switch.bathroom', 'on') %}
+          switch.turn_on
+        {% else %}
+          switch.turn_off
+        {% endif %}
+      data_template:
+        entity_id: switch.{{ states('input_select.is') }}
+```
+
+[Hunter Douglas Powerview]: /components/scene.hunterdouglas_powerview/
+[MQTT]: /components/lock.mqtt/
+[OwnTracks]: /components/device_tracker.owntracks/
+[Wemo Motion]: /components/binary_sensor.wemo/
+[@fabaff]: https://github.com/fabaff
+[@partofthething]: https://github.com/partofthething
+[@persandstrom]: https://github.com/persandstrom
+[@fabaff]: https://github.com/fabaff
+[@persandstrom]: https://github.com/persandstrom
+[@PartOfTheThing]: https://github.com/PartOfTheThing
+[@sander76]: https://github.com/sander76
+[@sander76]: https://github.com/sander76
+[@fabaff]: https://github.com/fabaff
+[@HydrelioxGitHub]: https://github.com/HydrelioxGitHub
+[@MartinHjelmare]: https://github.com/MartinHjelmare
+[@pavoni]: https://github.com/pavoni
+[@ryanlaux]: https://github.com/ryanlaux