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

This reverts commit 2b5b3ad3217037e6a9b41d745dad0e1f2f19a026.
Rebase from 'upstream' (no changes)
Trimmed the branch to only the jsk_ros_patch/laser_filters_jsk_patch sub directory