2.3.3

Specify kind on Date header to UTC.
Support for escaped special characters in CSS selectors.
Fix crash when saving CSV files with nulls.
Fix leakage of connections when HTTP requests time out.
Fixed numbers not being preserved correctly when generating names.
Fixed DOCTYPE being dropped when saving HTML documents.
Added omission on the API that prevented creating HTML CDATA elements.
Improved performance when parsing CDATA in HTML documents.
Improve performance of number and DateTime parsing.