Updated .gitignore to avoid manifest files
Added CheckStyle Rule for RubberDuck

You must have the CheckStyle plugin for Eclipse or Intellij for it to
work.
Added package-info for Menu
Fixed UnixInterface to be workable again
Removed outdated codestyle
Updated new eclipse formatter xml

This version is much closer to the current standards but may not be
exactly the same. Use with caution.
Merge branch 'output_format'