Revert "Trimmed the branch to only the jsk_ros_patch/laser_filters_jsk_patch sub directory"

This reverts commit 3f2fff03d55f4b7a45bcaae76341db6a62b31ecd.
Rebase from 'upstream' (no changes)
Trimmed the branch to only the jsk_ros_patch/laser_filters_jsk_patch sub directory