Update web page theme.
Update mailmap file.
Add Feature Selection classes to the reference docs.
0.5 changelog (Work in progres).
DOC: updating doc on Univariate feature selection
DOC: better link that literalinclude.
Combine user guide into a single file.

It's much easier for generating modular PDFs from latex output.
Update changelog.
Add png logo.
Update MANIFES.in file.
Update test.py and README.
normalize option for TfidfTransformer
fix garbage
Simplify test machinery.

Remove test.py script, use the simpler python -c "...", it also works
across OS.
Use ELLIPSIS for machine-dependent results in joblib.
Comment out machine-dependent tests from joblib.

Need this to make a consistent release, will uncoment later.
Update Makefile
Welcome Mathieu Blondel.
Fix doctests from the tutorial.
0.5 release candidate.