Bug 158947 the error of the datetime type conversion
Description: Now we input "Jan 13, 2003 12:00 AM GMT0100" into the parameter as a default value. The time is not transformed base on the time zone "GMT0100". The time should be transformed. And the other form input e.g. "SUN Jan 13, 2003 12:00 AM GMT0100" should be identified correctly. Step to reproduce: 1. new a report and create a report parameter 2. choose the date type "DateTime" 3. input value "SUN Jan 13, 2003 12:00 AM GMT0100" as default value,ok to finish 4. error message appear 5. input value "SUN Jan 13, 2003 12:00 AM" and click ok Actuate result: the parameter value is still "01/13/2003 12:00:00 AM" Excepted result: the datetime value should be transformed base on the time zone.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
return toTime( source );
		if ( Date.class.isAssignableFrom( toTypeClass ) ) 
			return toDate( source );
		if ( toTypeClass == Double.class )
			return toDouble( source );
		if ( toTypeClass == String.class )
			return toString( source );
		if ( toTypeClass == Blob.class )
			return toBlob( source );
		throw new BirtException( pluginId,
				ResourceConstants.INVALID_TYPE,
				resourceBundle );
	}
	/**
	 * Boolean -> Integer
	 * 		true 	-> 1
	 * 		others 	-> 0 
	 * Date -> Integer
	 * 		Date.getTime();
	 * String -> Integer
	 * 		Integer.valueOf();
	 * @param source
	 * @return
	 * @throws BirtException
	 */
	public static Integer toInteger( Object source ) throws BirtException
	{
		if ( source == null )
			return null;
		if ( source instanceof Integer )