Bug 152443 Support boolean type in data set
Support boolean type in data set. It'll cause some data transform issue with absence of boolean type.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
} );
    }
	/**
	 * A temp solution to the adoption of ICU4J to BIRT. Simply delegate
	 * toDate( String, Locale) method.
	 * 
	 * @param source
	 *            the String to be convert
	 * @param locate
	 * 			  the locate of the string
	 * @return result Date
	 */
	public static Date toDate( String source, Locale locale )
			throws BirtException
	{
		return toDate( source, ULocale.forLocale( locale ) );
	}
	/**
	 * convert String with the specified locale to java.util.Date
	 * 
	 * @param source
	 *            the String to be convert
	 * @param locate
	 * 			  the locate of the string
	 * @return result Date
	 */
	public static Date toDate( String source, ULocale locale )
			throws BirtException
	{
		if ( source == null )