Added camera_umd metapackage
Converted jpeg_streamer to catkin
Converted uvc_camera to catkin
Removed deprecated uvc_stereo package.

Please see the stereo camera support available in libuvc_camera (if
you have a UVC-compliant camera) or this repository's uvc_camera
(if you are on Linux and you need to stick with the Video4Linux system).

libuvc_camera: https://github.com/ktossell/libuvc_ros.git
Removed stack-level rosbuild files
Started changelogs
Fixed version numbers: prior version was 0.1.5
0.2.0