Added for openID demo https://github.com/bigbluebutton/bigbluebutton/commit/2c0a2a3104ec506b320ad972186266394a4e6a14

Added demo to join Demo Meeting using OpenID on Google and Yahoo

Signed-off-by: jfederico <jesus@123it.ca>

 - don't listen for 'w' and 'd' key chars to enable/disable whiteboard as it consumes text types into text field

Conflicts:
	bigbluebutton-web/.gitignore

Added check in bbb-conf to ensure beans.presentationService.defaultUploadedPresentation URL is reachable