BUG: maximum train and validation sizes were not correctly handled
(ac574321)

BUG: fix TrainImagesClassifier when bm=0.
(2a3cce86)

Now input vector with class is required for unsupervised classifier.
The cases where input vector data were optional for unsupervised
classification are commented.

Update license for added/moved files.

This allow to have only one application to handle bot supervised and
unsupervised classifier.