feat: add tray control, priority restoration and session logging

assets/SILK-LICENSE.md

@@ -0,0 +1,37 @@
+Original readme (from author of the icons)
+----------
+
+Silk icon set 1.3
+
+_________________________________________
+
+Mark James
+http://www.famfamfam.com/lab/icons/silk/
+
+_________________________________________
+
+This work is licensed under a
+Creative Commons Attribution 2.5 License.
+[ http://creativecommons.org/licenses/by/2.5/ ]
+
+This means you may use it for any purpose,
+and make any changes you like.
+All I ask is that you include a link back
+to this page in your credits.
+
+Are you using this icon set? Send me an email
+(including a link or picture if available) to
+mjames@gmail.com
+
+Any other questions about this icon set please
+contact mjames@gmail.com
+
+
+
+About the rest (all this repository but the icons)
+----------
+
+All the content of this repository (excepted the icon pack) 
+is licensed under the [MIT license](http://opensource.org/licenses/MIT).
+
+Though, it is just composed a few trivial json files and a Readme.