Merge branch 'master' of https://github.com/jsk-ros-pkg/jsk_recognition
rename rgb_color_filter.cpp and rgb_color_filter.h
to rgb color_filter.cpp and color_filter.h.
remove the sample launch files for non-used color converter and color filter
Merge pull request #98 from garaemon/cleanup-filter

Cleanup the launch files and rename rgb_color_filter.cpp