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
* corresponding Data Engine API data type constant
	 * defined in DataType.
	 * @param odaDataTypeCode   an ODA data type code
	 * @throws BirtException if the specified ODA data type code
	 *                      is not a supported type
	 */
	public static int toApiDataType( int odaDataTypeCode ) throws BirtException
	{
		Class odiTypeClass = toOdiTypeClass( odaDataTypeCode );
		return toApiDataType( odiTypeClass );
	}
	/**
	 * Convert object to a suitable type from its value 
	 * Object -> Integer -> Double -> BigDecimal -> Date -> String
	 */
	public static Object toAutoValue( Object evaValue )
	{
		if ( evaValue == null )
			return null;
		Object value = null;
		if ( evaValue instanceof String )
		{
			
			String stringValue = (String) evaValue;
			value = toIntegerValue( evaValue );
			if ( value == null )
			{
				try
				{