added CvHistogram functions
quick fix for setting line type option
fixed color conversion function for Mac OS X
added OpenCV version constants
refactored some functions to get options
fixed for Ruby 1.9.3
replaced rb_str_new_cstr() with rb_str_new2() for 1.8.7
changed some functions which call CVMAT_WITH_CHECK() to call CVARR_WITH_CHECK()
removed some unnecessary comments
fixed some bugs of examples/snake.rb
fixed for installing on Windows (mswin32)
added CvFeatureTree
added a sample of matching SURF feature points using kd-tree (example/match_kdtree.rb)
changed some files to make gem file properly
fix for Windows
remove dependencies of ffcall
add CvMat.add_weighted
add alpha blending sample (examples/alpha_blend.rb)
add .yardopts
delete .yardopts