cleanup and probability outputs
minor typos
adjust the API for model selection
class LDA added
integration data added
python 3 integration files updated
PCA unittest modified; minor change in whitening PCA
Merge pull request #2412 from mazumdarparijat/pca

pca unittest failure check
Merge pull request #2325 from kislayabhi/eigenize_LDA

LDA.cpp eigennized
bug fix for matrix_multiply w/o LAPACK
Merge pull request #2420 from mazumdarparijat/pca

bug fix for matrix_multiply w/o LAPACK
add SVR examples
Merge pull request #2400 from Saurabh7/svmnbs

Update svm nb
Merge pull request #2423 from Saurabh7/regressnbs

update regression nb
Added HierarchicalMultilabelModel class
names of files changed
modular interface added
kde notebook added
Effects of h and num_samples added;comments addressed
Merge pull request #2429 from mazumdarparijat/pca

paths to files changed