D-Bus: Support cached property values in GDBus clients
D-Bus: Support cached property values in GDBus clients

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