Some layout changes
Some more test and several fixes
FIX: warning on nonexistant path
Add current version of matplotlib's plot_directive
Update pngmath and plot directive configuration -- transparent plot backgrounds, figure sizes
New version of Numpy intro tutorial
Fix merge/version conflicts
Merge pull request #14 from emmanuelle/master

Minor change in image processing
Merge branch 'fabianp/scikits-learn'

Pull-Request: https://github.com/scipy-lectures/scipy-lecture-notes/pull/13

* fabianp/scikits-learn:
  FIX: warning on nonexistant path
  Some more test and several fixes
  Some layout changes
Fix path and matplotlib issues in numpy tutorial
Use Numpy version of plot_directive (works also with older Matplotlib)
Some minor changes.
last-minute changes
Tweak layout
Remove unused files
Take in account @ogrisel's remarks
Add missing files to make sure the tutorials actually build
Layout for web publishing
One last layout tweak
One last tweak