Release commit V1.3

Add feature to show and edit user variables
Add feature to allow modification of favorite status for devices
Update the icon with lighter background
Fix issues related to counter, current and humidity sensors

manifest.json.in

@@ -9,7 +9,7 @@
             "desktop":  "domoticz.desktop"
         }
     },
-    "version": "1.2.7",
+    "version": "1.3",
     "maintainer": "Richard Lee <apps-lee@outlook.fr>",
     "framework" : "ubuntu-sdk-16.04"
 }