dova: Support overriding properties
dova: Support overriding properties

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