Merge pull request #1 from chicagoedt/development

merging from upstream
moves misc and calibration files in line_detection. Looks way cleaner now. Only stuff in src is actual code
refs #21. line_detector now subscribes to compressed image and converts it to cv2 without cv_bridge. Still outputs raw image (not compressed format).
removes pointcloud publisher in line_detector
removes warped_line publisher in line_detection launch file
launch file now displays compressed images in image_view
reads in backprojection training file using package path instead of hard-coded absolute path
fixes #21. line_detection publishes line_image as compressed jpg image and launch file image_view now displays it
renames line_detector to backprojectgrass-skeletonize and changes all references to it
removes cv_bridge as a dependency from line_detection package
oops illegal node name, changed to use underscore instead of dash
fixes #23 by adding dynamic_reconfigure to line_detection
moves unneeded misc files to correct folder. No need for GUI_test now that dynamic_reconfigure works
copies backprojectgrass-skel and makes one for disparity. No changes made yet
changes new copy to produce a non-binary without skeletonizing. Also creates launch file for it
renames new files properly
adds resize feature and its dynamic reconfig parameters
changes resolution in usb_cam launch files to default 640x480
adds image_resizer node that can be separately run to resize ROS images
removes stupid resize feature from noskel node because that's already implemented in its own node. Also takes care of its dynamic_reconfigure parameters