Scram-Sha-1 mechanism : do not send authzid if it not absolutely necessary Some servers (ejabberd) reject the challenge if the scram attributes a (authzid) and n (authcid) are equals or they just don't handle the authzid. So we just don't send it if they are the same This fix #484

package net.java.otr4j;


public class OtrException extends Exception {
    private static final long serialVersionUID = 1L;

    public OtrException(Exception e){
	super(e);
    }
}