target-test-runner: exclude package and log4j jars

Fixes #12114.
Merge pull request #1080 from melissalinkert/test-runner-classpath

Exclude log4j and packages from target-test-runner
Update auto-generated documentation

Repository: openmicroscopy/bioformats
Already up-to-date.

Generated by BIOFORMATS-5.0-latest-docs-autogen#212 (http://ci.openmicroscopy.org/job/BIOFORMATS-5.0-latest-docs-autogen/212/)