Add note about fullscreen surfaces, misc edits.
Add note about fullscreen surfaces, misc edits.

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