Well, after shamefully waiting over a year to do any kind of updates to this plugin, I've finally made some changes and merged in pull requests from others.
Next steps are going to be fix some of the issues. Some great suggestions have come up in the Issues area on Github. In fact, I plan on releasing a patch later today.
I chose version 0.2 after some long debate with myself (Hello, me). I don't really want to call this a 1.0 release quite yet. I think some things like not being able to override the ESAPI.properties file as well as not enough unit tests make this still a beta plugin. I'd love to know if others are using it, too. If so, and people are having success, then maybe a 1.0 release is in order. Until then, there's still some work left to do.