Updated to jQuery 1.11.0.
Temporary commit.
COMETD-502 - Use one scheduler for all OortComets of an Oort.
COMETD-501 - Allow Websocket Transport in Non JEE7 Environment.

Introduced ClientTransport.Factory to be able to create ClientTransports.
Introduced Oort.clientTransportFactories to be able to configure the
factories to create the transports to be passed to the OortComet instances.

Configuration requires subclassing of the Oort configuration servlet
but should be straightforward.
Implemented correct handling of cookies and BayeuxContext.
Merged branch '2.8.x' into 'master'.
Updated Jetty to 9.1.2-SNAPSHOT.