Fixed Issue 643 - Add Copy All Text option to Chat

bigbluebutton-client/resources/config.xml.template

...src/org/bigbluebutton/modules/chat/maps/ChatEventMap.mxml

...g/bigbluebutton/modules/chat/maps/ChatEventMapDelegate.as

...c/org/bigbluebutton/modules/chat/views/AddChatTabBox.mxml

...ent/src/org/bigbluebutton/modules/chat/views/ChatBox.mxml

...bigbluebutton/modules/chat/views/ChatMessageRenderer.mxml

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

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

...c/org/bigbluebutton/modules/phone/maps/PhoneEventMap.mxml