MOD: When frame window roll-up state is toggled, invalidate recursively so that child content visuals are forced to redraw.
MOD: When frame window roll-up state is toggled, invalidate recursively so that child content visuals are forced to redraw.

--HG--
branch : v0-7

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two