/**
     * Sets basic authentication for the request. Uses AuthScope.ANY. This is the same as
     * setBasicAuth('username','password',AuthScope.ANY) 
     * @param username
     * @param password
     */
    public void setBasicAuth(String user, String pass){
        AuthScope scope = AuthScope.ANY;
        setBasicAuth(user, pass, scope);
    }

   /**
     * Sets basic authentication for the request. You should pass in your AuthScope for security. It should be like this
     * setBasicAuth("username","password", new AuthScope("host",port,AuthScope.ANY_REALM))
     * @param username
     * @param password
     * @param scope - an AuthScope object
     *
     */
    public void setBasicAuth( String user, String pass, AuthScope scope){
        UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(user,pass);
        this.httpClient.getCredentialsProvider().setCredentials(scope, credentials);
    }