Update Vala bindings to accommodate Vala 0.5.6

[Marco]

make[3]: Entering directory `../awn/awn-extras/src/simple-launcher'
/usr/bin/valac --cc="gcc -shared -fPIC -g -O2" -o simple-launcher.so applet.vala --vapidir=/usr/share/vala/vapi --pkg=awn
applet.vala:384.43-384.46: warning: Argument 2: Cannot pass null to non-null parameter type
      effects.start_ex( Effect.LAUNCHING, null, null, 3);
                                          ^^^^
applet.vala:384.49-384.52: warning: Argument 3: Cannot pass null to non-null parameter type
      effects.start_ex( Effect.LAUNCHING, null, null, 3);
                                                ^^^^
applet.vala:214.41-214.44: warning: Argument 2: Cannot pass null to non-null parameter type
    effects.start_ex( Effect.LAUNCHING, null, null, 1);
                                        ^^^^
applet.vala:214.47-214.50: warning: Argument 3: Cannot pass null to non-null parameter type
    effects.start_ex( Effect.LAUNCHING, null, null, 1);
                                              ^^^^
applet.vala:418.33-418.36: warning: Argument 1: Cannot pass null to non-null parameter type
    this.window.set_back_pixmap(null, false);
                                ^^^^
applet.vala:226.3-226.25: warning: method `LauncherApplet._drag_drop' never used
  private bool _drag_drop(Gtk.Widget widget, Gdk.DragContext context, int x, int y, uint time)
  ^^^^^^^^^^^^^^^^^^^^^^^
applet.vala:241.13-241.15: warning: local variable `cmd' declared but never used
    string cmd;
            ^^^
applet.vala:355.10-355.12: warning: local variable `xid' declared but never used
    int xid;
         ^^^
applet.vala:359.10-359.24: warning: local variable `multi_count' declared but never used
    uint multi_count = 0;
         ^^^^^^^^^^^^^^^
applet.vala:423.3-423.28: warning: method `LauncherApplet._leave_notify' never used
  private bool _leave_notify(Gtk.Widget widget, Gdk.EventCrossing event)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^
applet.vala:430.3-430.28: warning: method `LauncherApplet._enter_notify' never used
  private bool _enter_notify(Gtk.Widget widget, Gdk.EventCrossing event)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^
awn.vapi:342.23-342.26: error: unowned return value for getter of property `Awn.Applet.uid' not supported without accessor
  public string uid { get; set construct; }
                      ^^^^
Compilation failed: 1 error(s), 11 warning(s)
make[3]: *** [simple-launcher.so] Error 1

[Mark Lee (malept)]

This is actually a problem with the Awn bindings (it was generated with an early version of Vala). Moving bug report to Awn.

[Mark Lee (malept)]

Fixed in Awn trunk revision 539 (and to a lesser extent, Awn Extras trunk revision 1017).