added a configuration warning system to the flash client

...uebutton-client/branding/default/style/css/BBBDefault.css

.../branding/default/style/css/assets/images/status_fail.png

...anding/default/style/css/assets/images/status_success.png

...anding/default/style/css/assets/images/status_warning.png

...ing/default/style/css/assets/images/status_warning_20.png

.../default/style/css/org/bigbluebutton/skins/ToolTipSkin.as

bigbluebutton-client/locale/en_US/bbbResources.properties

bigbluebutton-client/resources/config.xml.template

...ebutton-client/src/org/bigbluebutton/core/model/Config.as

...nt/src/org/bigbluebutton/main/events/ClientStatusEvent.as

...rg/bigbluebutton/main/views/ClientStatusItemRenderer.mxml

.../src/org/bigbluebutton/main/views/ClientStatusWindow.mxml

...rc/org/bigbluebutton/main/views/MainApplicationShell.mxml

...lient/src/org/bigbluebutton/main/views/WarningButton.mxml

...bigbluebutton/modules/phone/managers/WebRTCCallManager.as