Merge branch 'master' of https://github.com/jsk-ros-pkg/jsk_recognition
[jsk_libfreenect2] main loop invoked from ros::Timer in order not to
block onInitialize function.
This blocking may lead other nodelet stucked.
Merge pull request #234 from garaemon/freenect2-with-timer

[jsk_libfreenect2] not block other nodelets