v6.0.0

Enhancements

• @Wenq added contour.moments method.
• @andreasgal added matrix.substract method.
• @jainanshul added matrix.mean method.
• @idubinskiy restored contour.points method.
• @danschultzer updated node-pre-gyp to fix load of node-opencv in electron runtime.
• @andreasgal made matrix.getData work with RGB images.
• @Evilcat325 added matrix.MatchTemplateByMatrix method.
• @danschultzer added code coverage.

Bug fixes

• @dominikdolancic fixed image load issue in matrix.matchTemplate().
• @AwooOOoo fixed type_info errors in Visual Studio with std namespace pollution.
• @mvines fixed issue that prevented AsyncSaveWorker from using de-allocated memory.
• @mcwhittemore fixed dissimilarity example image load.
• @saoron fixed dead index.html documentup source.
• @andreasgal fixed an issue with matrix.crop (and potentially others), where matrix.getData ends up returning less than full matrix.
• @danschultzer fixed examples/test.js channel issue, and problematic Vec3b casting (instead of Vec3f) in matrix.set.

Backwards incompatible changes

• @dxprog changed readImage to load image with CV_LOAD_IMAGE_UNCHANGED instead of CV_LOAD_IMAGE_COLOR. The latter returned the image as 3-channel.
• @danschultzer changed VideoCapture.close to VideoCapture.release.

Thanks to all, also a massive thanks to @danschultzer for helping get the open
tickets and PR's under control.