[gnome-music] Changed depreciated PARAM_READWRITE to ParamFlags.READWRITE

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit bcfcd40b2bf0e05a180b33b1fad0eb545c7c4859
Author: Mike Gray <mikegrayv2 yahoo com>
Date:   Sun Sep 13 22:50:16 2015 -0500

    Changed depreciated PARAM_READWRITE to ParamFlags.READWRITE
    
    https://bugzilla.gnome.org/show_bug.cgi?id=754977

 gnomemusic/widgets.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnomemusic/widgets.py b/gnomemusic/widgets.py
index 3bb3d4f..a86220e 100644
--- a/gnomemusic/widgets.py
+++ b/gnomemusic/widgets.py
@@ -854,7 +854,7 @@ class CellRendererClickablePixbuf(Gtk.CellRendererPixbuf):
     __gsignals__ = {'clicked': (GObject.SignalFlags.RUN_LAST, GObject.TYPE_NONE,
                                 (GObject.TYPE_STRING,))}
     __gproperties__ = {
-        'show_star': (GObject.TYPE_INT, 'Show star', 'show star',0 ,2 ,1 , GObject.PARAM_READWRITE)}
+        'show_star': (GObject.TYPE_INT, 'Show star', 'show star',0 ,2 ,1 , GObject.ParamFlags.READWRITE)}
 
     starIcon = 'starred-symbolic'
     nonStarIcon = 'non-starred-symbolic'