Awood/commonize

Move common code (like the logging servlet filter) into the "common" project.
This particular test was just testing comparisons so I just picked something that wouldn't compare correctly.  At the time I had been working with StandardCharsets so I just picked UTF-8 as an object to compare against.  It actually makes more sense to compare against just a plain Object since that won't confuse people by causing them to wonder "what does this test have to do with encodings?"