Revert "Merge pull request #762 from themodernlife/develop"

This reverts commit a1bca1fbda1f251d7b23c2aa7f85e380f8641cd7, reversing
changes made to 4602940ff9b82d434f0144c7b990e75dca30f754.

This change introduced some issues with the typical workflow we have developed. Referring to https://github.com/twitter/scalding/pull/762, the issue is that if there is no S.jar installed and on the classpath, then the fact that J.jar needs the scalding stuff in D.jar creates issues. Since this isn't a common workflow this shouldn't be a default value. That said, we should update the wiki with the workflow described in that PR, telling people how to set this value.