version 0.2-rc5 ( codename THANKSIBIT )

* added optical flow objects :
Block Matching : pix_opencv_of_bm
Horn and Schunck : pix_opencv_of_hs
Lucas/Kanade : pix_opencv_of_lk

version 0.2-rc4 ( codename BALTANIK )

* contours detection objects ( hu_compare and pgh_compare )
now give the posititon of matching contours.
