dbus-glib-1: Add bindings for DBusGProxy::destroy signal.
dbus-glib-1: Add bindings for DBusGProxy::destroy signal.

spidermonkdust/vala,tjol/vala-tjol,severinh/vala,Distrotech/vala,frida/vala,frida/vala,playya/vala,phako/vala,tjol/vala-tjol,severinh/vala,themiwi/vala,kamanashisroy/aroop,playya/vala,jessevdk/vala,GNOME/vala,flobrosch/vala-fixes,Jc2k/vala,themiwi/vala,tjol/vala-tjol,Distrotech/vala,spidermonkdust/vala,GNOME/vala,xdave/pvala,rvu95/vala,kamanashisroy/aroop,GNOME/vala,severinh/vala,Distrotech/vala,rvu95/vala,phako/vala,frida/vala,frida/vala,Jc2k/vala,spidermonkdust/vala,jessevdk/vala,GNOME/vala,playya/vala,flobrosch/vala-fixes,jessevdk/vala,frida/vala,themiwi/vala,rvu95/vala,flobrosch/vala-fixes,kamanashisroy/aroop