Thanks, it is merged in. I was seeing the same odd unsupportedClassVersion exception, it looks like Derby 10.13 requires Java 8. I downgraded to 10.12 and the tests pass. That change has been pushed to the branch.
I also finished going through all the changes in dbmanul vs. liquibase. Lots of great work you've done, especially around testing. I have a few notes and comments I'll write up tomorrow but nothing major.
Thanks again,
Nathan