fixed compile error when lapack not installed for logdet constructor and its unit test
Eigenfaces example

[ahcorde]EigenFaces

[ahcorde] Using PCA shogun

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[ahcorde] Eigenfaces Shogun

[ahcorde] Eigenfaces

[ahcorde]

[ahcorde] Eigenfaces python

[ahcorde] Eigenfaces

[ahcorde]

[ahcorde] Eigenfaces

Solved path problem. Shogun BSD license

all commit in one

visualization issues. 3 windows (subset data, mean face and reconstructions)
resize interpolation (nearest)

All images in one visualization