Made a window-unmap-event generate a call to port-destroy-mirror.
Made a window-unmap-event generate a call to port-destroy-mirror.

swflint/McCLIM,slyrus/mcclim,slyrus/mcclim,antifuchs/mcclim,onixie/mcclim,swflint/McCLIM,onixie/mcclim,antifuchs/mcclim,onixie/mcclim,swflint/McCLIM