hiding window contents on minimize

bigbluebutton-client/libs/flexlib.swc

bigbluebutton-client/locale/en_US/bbbResources.properties

...nt/src/org/bigbluebutton/modules/chat/views/ChatView.mxml

.../src/org/bigbluebutton/modules/chat/views/ChatWindow.mxml

...dules/deskshare/view/components/DesktopPublishWindow.mxml

...igbluebutton/modules/listeners/views/ListenersWindow.mxml

...uebutton/modules/present/ui/views/PresentationWindow.mxml

.../org/bigbluebutton/modules/videodock/views/VideoDock.mxml

...rg/bigbluebutton/modules/viewers/views/ViewersWindow.mxml