DataSource Release Notes
**** version 2.2.2 ***
* No changes.
**** version 2.2.1 ***
* Fixed parseTextData() to longer reverse-order data or truncate first record.
* Fixed bug where data values of 0 (zero) were being converted to empty string.
* Fixed erroneous undefined values created by parseDataArray().
* Callback functions now receive an additional argument in the form of a boolean
to indicate data error.
* Support for nested JSON data.
* Support for responseShema.fields.converter to take string response and custom
convert data type.
* Added static converter methods YAHOO.util.DataSource.convertNumber and
YAHOO.util.DataSource.convertDate.
* Improved type checking with YAHOO.lang.
**** version 2.2.0 ***
* Beta release.
