added changes in source plus modified jar file

[trackme518]

By https://github.com/trackme518 :

• fixed bug on Linux with OSC broadcast (in UdpServer.java)
• exposed sender ip address with new function .getIP() - returns IP as a String (ie "168.0.4.2")

public String getIP( ) {
	return hostAddress;//Bytes.getAsString( hostAddress );
}

In OscMessage.java

channel.socket().setBroadcast(true);

In UdpServer.java

Please merge with your master branch - just add me to list of authors in your library properties - see the changed file. I aslo created a build of the .jar file so you don't have to build yourself - just upload. I would also suggest to update the library on Processing repository - the bug with the broadcast not working on Linux is PITA.