Bug 177693 Support Date/Time data type in BIRT report engine.
Report engine needs to support new BIRT data type Date/Time. Please see attached for details.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ParameterSelectionChoice.java
* 
	 * @see org.eclipse.birt.report.engine.api2.IParameterSelectionChoice#getLabel()
	 */
	public String getLabel()
	{
		if ( labelKey == null )
			return label;
		
		String ret = design.getMessage( labelKey, 
				(locale == null ) ? Locale.getDefault() : locale);
		return (ret == null || ret.length() == 0) ? label : ret;
	}
	
	/* (non-Javadoc)
	 * @see java.lang.Object#clone()
	 */
	public Object clone() throws CloneNotSupportedException
	{
		return super.clone();
	}
	
	/**
	 * @return returns the choice value
	 */
	public Object getValue()
	{
		return value;
	}
}