+WHAT'S NEW in version 0.5.1 (2013-11-20)
+ Fixed a bug in handling comments.
+
+WHAT'S NEW in version 0.5.0 (2013-11-19)
+ Added lxml.etree-based implementation.
+
+WHAT'S NEW in version 0.4.0 (2013-11-19)
+ Added ElementTree-based implementation.
+