Merge commit '0.4' into debian-release

* commit '0.4': (215 commits)
  0.4 release.
  Remove code from roc plotting that was interfering with build system.
  Add title to example.
  Remove benchmarking code from lasso example.
  Move glm examples to common directory.
  Rename examples that do not plot results.
  Remove also auto-generated examples with make clean
  Add a __version__ attribute.
  Comment out broken parts of the feature selection example that are broken.
  Add docstring to UnivariateFilter.
  Remove redundant seed generator.
  Initialize with a fixed seed tests in feature_select
  Remove old em module.
  Remove duplicate module univariate_selection.
  Remove examples from deprecated modules.
  Add an example with probability distribution estimates using GMM.
  Fix broken links in doc.
  Update example gmm.
  Updates on gmm example: cleanup.
  Some fixes to make it compile against MKL library.
  ...