start and stop the service with user login and logoff

reset user and token when a user loggs off

addon.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <addon  id="plugin.video.embycon" 
         name="EmbyCon"
-        version="1.1.1"
+        version="1.1.3"
         provider-name="null_pointer">
   <requires>
     <import addon="xbmc.python" version="2.1.0"/>
@@ -9,7 +9,7 @@
   <extension point="xbmc.python.pluginsource" library="default.py">
         <provides>executable video audio image</provides>
   </extension>
-  <extension point="xbmc.service" library="service.py" start="startup">
+  <extension point="xbmc.service" library="service.py" start="login">
   </extension>
   <extension point="xbmc.addon.metadata">
     <platform>all</platform>

service.py

@@ -140,7 +140,12 @@ while not xbmc.abortRequested:
 
     xbmc.sleep(1000)
     xbmcgui.Window(10000).setProperty("EmbyCon_Service_Timestamp", str(int(time.time())))
-    
+
+# clear user and token when loggin off
+WINDOW = xbmcgui.Window(10000)
+WINDOW.clearProperty("userid")
+WINDOW.clearProperty("AccessToken")
+
 # stop the WebSocket client
 websocket_thread.stopClient()