gui: Adding a draft implementation for platform-dependent tray icon

Change-Id: Ib2b7eb7287f470a84e23301dbfc0b0399775cc56
diff --git a/gui/images.qrc b/gui/images.qrc
index 29a8104..0c4f852 100644
--- a/gui/images.qrc
+++ b/gui/images.qrc
@@ -1,5 +1,6 @@
 <RCC>
     <qresource prefix="/">
-        <file>images/friends-group-icon.png</file>
+        <file>images/chronoshare-big.png</file>
+	<file>images/chronoshare-ubuntu.png</file>
     </qresource>
 </RCC>