better notification support; dock icon;
system tray icon;
notification is given when the new message is received
and the dialog is not active window;
notification requires growl in Mac OS X
icon also changes until the window is reactivated
diff --git a/demo.qrc b/demo.qrc
new file mode 100644
index 0000000..b17d550
--- /dev/null
+++ b/demo.qrc
@@ -0,0 +1,7 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/">
+ <file>images/icon_large.png</file>
+ <file>images/icon_small.png</file>
+ <file>images/note.png</file>
+</qresource>
+</RCC>