See extended message

Updated and added modules:
- Core:
* minor revisions

- ImageProcessing:
* Chained filtering are easier to code and the code remains very compact
to improve readability
* Image pyramid data structures, Gaussian pyramid, DoG, LoG, second
moment matrix
* Image warping

- FeatureDetectors:
* Refinement/interpolation of keypoint localization
* Affine shape adaptation based on second moment-matrix
* DoG extrema
* Harris-Laplace corners
* det(Hessian) extrema
* Scale selection based on the normalized Laplacians of Gaussians
* Dominant orientations of a patch
* SIFT implementation
* adaptive non maximal suppression

Coming very very soon:
Hessian-Laplace detector