* Copyright (c) 2006-2007
 * Digital Enterprise Research Institute,
 * National University of Ireland, Galway, Ireland
 * http://www.deri.org/
 * 
 * TagsTreeMaps is distributed under modified (non-commercial) BSD license.
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source_ and binary forms, with or without modification, are 
 * permitted provided that the following conditions are met:
 * 
 *    * Redistributions of source_ code must retain the above copyright notice, this list 
 * of conditions and the following disclaimer.
 *    *Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided 
 * with the distribution.
 *     * Neither the name of Digital Enterprise Research Institute, 
 * National University of Ireland, Galway, Ireland nor the names of its 
 * contributors  may be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 *    * Parts of this project (or the whole one) can be freely used in any other open source_ projects; 
 * while using in closed-code projects requires specific prior written permission from all license owners
 *    * Modified code of this project must retain the ownership, above copyright notice, 
 *    this list of conditions and the following disclaimer, 
 *    unless most of the algorithms has been changed.
 * 
 * THIS SOFTWARE IS PROVIDED BY THECOPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIEDWARRANTIES OF MERCHANTABILITY 
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITEDTO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ONANY 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAYOUTOF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.