Track client objects and destroy them on disconnect.
Track client objects and destroy them on disconnect.

We're going to need a virtual destructor eventually...

sir-murray/weston,bitfactor/wayland,eyolfson/wayland,eyolfson/wayland,mchalupa/wayland,Fantu/compositor-spice,abooij/wayland,mchalupa/wayland,sir-murray/wayland,Fantu/compositor-spice,Tarnyko/weston-xdg_surface_present,mchalupa/weston,sir-murray/weston,jonnylamb/weston,bitfactor/wayland,kwm81/weston,eyolfson/weston,kwm81/weston,tulcod/wayland,sir-murray/wayland,giucam/weston,jonnylamb/weston,tulcod/wayland,udoprog/weston,abooij/wayland,Gnurou/weston,abooij/wayland,tulcod/wayland,udoprog/weston,xorgy/weston,bitfactor/wayland,eyolfson/weston,mchalupa/weston,Fantu/compositor-spice,sir-murray/wayland,Tarnyko/weston-xdg_surface_present,xorgy/weston,giucam/weston,krezovic/weston,eyolfson/wayland,mchalupa/wayland,Gnurou/weston,krezovic/weston