diff --git a/atom.xml b/atom.xml
index 7dedc09aec..07fe9d3e87 100644
--- a/atom.xml
+++ b/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Home Assistant]]></title>
   <link href="https://home-assistant.io/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/announcements/atom.xml b/blog/categories/announcements/atom.xml
index 9601669aca..07b3b470b4 100644
--- a/blog/categories/announcements/atom.xml
+++ b/blog/categories/announcements/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Announcements | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/announcements/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/community/atom.xml b/blog/categories/community/atom.xml
index b056194576..c310062cf0 100644
--- a/blog/categories/community/atom.xml
+++ b/blog/categories/community/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Community | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/community/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/device-tracking/atom.xml b/blog/categories/device-tracking/atom.xml
index ed4ed1b59d..9c886e705d 100644
--- a/blog/categories/device-tracking/atom.xml
+++ b/blog/categories/device-tracking/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Device-Tracking | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/device-tracking/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/esp8266/atom.xml b/blog/categories/esp8266/atom.xml
index 94ccaa7d24..2a6704310f 100644
--- a/blog/categories/esp8266/atom.xml
+++ b/blog/categories/esp8266/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: ESP8266 | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/esp8266/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/how-to/atom.xml b/blog/categories/how-to/atom.xml
index 2f941a818d..0463e87c27 100644
--- a/blog/categories/how-to/atom.xml
+++ b/blog/categories/how-to/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: How-To | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/how-to/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/ibeacons/atom.xml b/blog/categories/ibeacons/atom.xml
index 19aaf0dc04..301490bbbe 100644
--- a/blog/categories/ibeacons/atom.xml
+++ b/blog/categories/ibeacons/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: iBeacons | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/ibeacons/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/internet-of-things/atom.xml b/blog/categories/internet-of-things/atom.xml
index 8ad70c09b5..ed8ed3d008 100644
--- a/blog/categories/internet-of-things/atom.xml
+++ b/blog/categories/internet-of-things/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Internet-of-Things | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/internet-of-things/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/iot-data/atom.xml b/blog/categories/iot-data/atom.xml
index 9d5101b6ee..43988bd093 100644
--- a/blog/categories/iot-data/atom.xml
+++ b/blog/categories/iot-data/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: IoT-Data | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/iot-data/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/merchandise/atom.xml b/blog/categories/merchandise/atom.xml
index ffc1fcfdfe..9fce1ef1c6 100644
--- a/blog/categories/merchandise/atom.xml
+++ b/blog/categories/merchandise/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Merchandise | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/merchandise/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/micropython/atom.xml b/blog/categories/micropython/atom.xml
index 2bff16940b..b8b87a9e85 100644
--- a/blog/categories/micropython/atom.xml
+++ b/blog/categories/micropython/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Micropython | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/micropython/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/mqtt/atom.xml b/blog/categories/mqtt/atom.xml
index f1341ed839..8d05ac8e8e 100644
--- a/blog/categories/mqtt/atom.xml
+++ b/blog/categories/mqtt/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: MQTT | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/mqtt/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/organisation/atom.xml b/blog/categories/organisation/atom.xml
index ff131f06c0..e0959deb0b 100644
--- a/blog/categories/organisation/atom.xml
+++ b/blog/categories/organisation/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Organisation | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/organisation/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/owntracks/atom.xml b/blog/categories/owntracks/atom.xml
index e024b8a20d..8fe63521c4 100644
--- a/blog/categories/owntracks/atom.xml
+++ b/blog/categories/owntracks/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: OwnTracks | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/owntracks/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/presence-detection/atom.xml b/blog/categories/presence-detection/atom.xml
index 785f826cab..ec8c64f56b 100644
--- a/blog/categories/presence-detection/atom.xml
+++ b/blog/categories/presence-detection/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Presence-Detection | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/presence-detection/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/public-service-announcement/atom.xml b/blog/categories/public-service-announcement/atom.xml
index 8ff47039d9..891f09d67a 100644
--- a/blog/categories/public-service-announcement/atom.xml
+++ b/blog/categories/public-service-announcement/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Public-Service-Announcement | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/public-service-announcement/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/release-notes/atom.xml b/blog/categories/release-notes/atom.xml
index 4d2895dce2..d3cf006aca 100644
--- a/blog/categories/release-notes/atom.xml
+++ b/blog/categories/release-notes/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Release-Notes | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/release-notes/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/survey/atom.xml b/blog/categories/survey/atom.xml
index 68aeb8f5c0..3368168f8e 100644
--- a/blog/categories/survey/atom.xml
+++ b/blog/categories/survey/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Survey | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/survey/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/talks/atom.xml b/blog/categories/talks/atom.xml
index 124374937d..ec32648445 100644
--- a/blog/categories/talks/atom.xml
+++ b/blog/categories/talks/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Talks | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/talks/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/technology/atom.xml b/blog/categories/technology/atom.xml
index 6116c30307..793227f2a2 100644
--- a/blog/categories/technology/atom.xml
+++ b/blog/categories/technology/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Technology | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/technology/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/user-stories/atom.xml b/blog/categories/user-stories/atom.xml
index ecaf6087a1..1c244e6d08 100644
--- a/blog/categories/user-stories/atom.xml
+++ b/blog/categories/user-stories/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: User-Stories | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/user-stories/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/video/atom.xml b/blog/categories/video/atom.xml
index aa55d337ad..d9ece8ee73 100644
--- a/blog/categories/video/atom.xml
+++ b/blog/categories/video/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Video | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/video/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/website/atom.xml b/blog/categories/website/atom.xml
index dc74b41549..bf94c60bad 100644
--- a/blog/categories/website/atom.xml
+++ b/blog/categories/website/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Website | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/website/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-05-07T17:09:36+00:00</updated>
+  <updated>2017-05-07T18:39:49+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/components/light.mqtt_json/index.html b/components/light.mqtt_json/index.html
index 5de74f69c6..6f884954ad 100644
--- a/components/light.mqtt_json/index.html
+++ b/components/light.mqtt_json/index.html
@@ -106,6 +106,7 @@
   <li><strong>name</strong> (<em>Optional</em>): The name of the light. Default is “MQTT JSON Light.”</li>
   <li><strong>optimistic</strong> (<em>Optional</em>): Flag that defines if the light works in optimistic mode. Default is true if no state topic defined, else false.</li>
   <li><strong>qos</strong> (<em>Optional</em>): The maximum QoS level of the state topic. Default is 0 and will also be used to publishing messages.</li>
+  <li><strong>retain</strong> (<em>Optional</em>): If the published message should have the retain flag on or not.</li>
   <li><strong>rgb</strong> (<em>Optional</em>): Flag that defines if the light supports RGB colors. Default is false.</li>
   <li><strong>state_topic</strong> (<em>Optional</em>): The MQTT topic subscribed to receive state updates.</li>
   <li><strong>white_value</strong> (<em>Optional</em>): Flag that defines if the light supports white values. Default is false.</li>
diff --git a/sitemap.xml b/sitemap.xml
index 15e9803f6c..901c738a1e 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -3351,62 +3351,62 @@
 </url>
 <url>
 <loc>https://home-assistant.io/demo/frontend.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/index.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-event.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-info.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-service.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-state.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-template.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-history.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-iframe.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-logbook.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-map.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/googlef4f3693c209fe788.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/fonts/roboto/DESCRIPTION.en_us.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/fonts/robotomono/DESCRIPTION.en_us.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/mdi-demo.html</loc>
-<lastmod>2017-05-07T17:08:23+00:00</lastmod>
+<lastmod>2017-05-07T18:38:55+00:00</lastmod>
 </url>
 </urlset>