Revert "comment out ml_classifiers that is not have entory in rosdep"

This reverts commit 187c4d730843625c788d809b4553a87207278c88.
Revert "Trimmed the branch to only the jsk_pcl_ros sub directory"

This reverts commit 089beace50f4b983f952cbeeafe411ae48f6a5ef.
Rebase from 'upstream' (no changes)
Trimmed the branch to only the jsk_pcl_ros sub directory
comment out ml_classifiers that is not have entory in rosdep