css4j v1.0.9

This release backports a few 3.x improvements to the 1.x branch, although users should upgrade to 2.1 or later as soon as possible (1.x is not formally maintained anymore). When upgrading, please keep in mind that 2 and 3.x releases require Java 8 or higher.

This release adds SVG 1.1 DTD support to DefaultEntityResolver, and provides a few DOM fixes.

HEADS UP: In css4-dom4j, the text content of <style> elements is updated with the serialization of the contained style sheet, when calling normalize() on it. Perhaps this should have caused the release to be labeled as "1.1", hopefully there are no downstream regressions because of that.