meaningfulweb updates

John,

I'm working on a project that could leverage the feature provided in your library.  After cloning the repository, I made a small build enhancement that fixed the groupId of nekohtml and htmlcleaner so users don't need to run bin/mvn-install.sh anymore.  I can remove lib and bin directory in my subsequent pull request.  Just want to send this one off first to get started.

Thanks,
calvin