* java/net/Socket.java
	(sendUrgentData): New method.
	(getChannel): New method.
	* java/net/ServerSocket.java
	(getChannel): New method.
	(isBound): New method.
	* java/net/DatagramSocket.java
	(DatagramSocket): Two new methods.
	(bind): New method.
	(getChannel): New method.
	(isBound): New method.
	(send): Added newline to to make shorter lines.
	* java/net/PlainDatagramSocketImpl.java
	(mcastGrp): Added argument.
	(join): Use new mcastGrp.
	(leave): Use new mcastGrp.
	(joinGroup): New method.
	(leaveGroup): New method.
	* java/net/natPlainDatagramSocketImpl.cc
	(mcastGrp): Added argument, no yet really implemented.
	(getOption): Added newline for shorter lines.
	* java/net/natPlainSocketImpl.cc
	(read, setOption, getOption): Added newline for shorter lines.

From-SVN: r57380