The addition of extra attributes to the root elements of jmnedict and kanjidic2 I think would be minimally disruptive to existing users and would allow new code to extract the date/version info from ...
I'm re-opening this as it's actually a bug @jontromanab: there is indeed a closing tag missing for class in the plugin.xml file of the base_placement_plugin package (this one).
Sometimes it seems you spend more time manipulating XML files than you do writing Java code, so it makes sense to have one or two XML wranglers in your toolbox. In this article, Laurent Bovet gets you ...