because JUnit depends on Hamcrest, we need to also make that visible or else classloader constraint violation ensues.

Since our dependencies only include the Hamcrest core, other optional modules of Hamcrest will continue to load in the user classloader.
Massaging the POM to reues what I do elsewhere.
Merge branch 'master' of github.com:kohsuke/empty-commit
[maven-release-plugin] prepare release maven-junit-plugin-1.11