giving systray client its own config file

installer/resources/systray.config

@@ -0,0 +1,11 @@
+# NOTE: The system tray control currently only works on Windows and KDE.
+
+# The filename (with full path if needed) of the browser to be used by the
+# system tray control to launch the router console. You may also append command
+# line parameters like so:
+#
+#     browser=/usr/bin/opera -newpage
+#
+# If you set this value to 'default', systray will attempt to identify and use
+# your system's default browser.
+browser=default