[gutvol-d] Kindlegen 2.4 has some useful features

Kindlegen 2.4 is announced, which has some useful features, such as properly supporting display:none -- which could be useful for example in some of the commonly used DP hacks which are intended (currently unsuccessfully) to hide page numbers on those devices which really don't want to support page numbers. I think PG is still running Kindlegen first generation, however. http://tinyurl.com/6qhkzx3