image plugin. add tooltip for button

image/image.py

@@ -57,14 +57,9 @@ class Base(object):
         self.button.set_property('relief', gtk.RELIEF_NONE)
         self.button.set_property('can-focus', False)
         img = gtk.Image()
-        #img_path = self.plugin.local_file_path('favicon.png')
-        #pixbuf = gtk.gdk.pixbuf_new_from_file(img_path)
-        #iconset = gtk.IconSet(pixbuf=pixbuf)
-        #factory = gtk.IconFactory()
-        #factory.add('juick', iconset)
-        #factory.add_default()
         img.set_from_stock('gtk-orientation-portrait', gtk.ICON_SIZE_BUTTON)
         self.button.set_image(img)
+        self.button.set_tooltip_text('Send image')
         send_button = chat_control.xml.get_object('send_button')
         send_button_pos = actions_hbox.child_get_property(send_button,
             'position')