Changelog

• #6392 - Review accidental xml config changes
• #6379 - Reduce contention in all ByteBufferPool implementations
• #6354 - org.slfj dependency imports packages at 2.0
• #6329 - Regression on graceful shutdown default in Jetty 10
• #6302 - Treat empty path segments are ambiguous.
• #4772 - Jetty WebSocket API onMessage annotation does not support partial messages.