DOC: Simpler cross-validation iterator doc
TST: fix test on scipy dev version
ENH add VarianceThreshold feature selection method
Add .bmp sklearn logo of correct width for Win setup
2-fold => 2-fold cross-validation
approximately the same percentage of samples
Remove spurious print statements in sample snippets to make the doc easier to follow
Lowercase y and more consistent blank line usage
MISC: switch line returns back to unix

Shame on me for messing up line returns. This diff will make history
ugly. Sorry
BUG: restore setup.py clean functionality

Proper implementation of the clean command.
MISC: fix rst
Updated with more explanatory text. Also changed to use train_test_split function
Corrected some typos, and added more explanation for the precision recall example.
Clarified a few wordy sentences
Attempted a clearer explanation of precision-recall score
Adjusted to fit 80 character columns, and corrected definition of precision
Removed random_seed argument to svm.SVC
Added contributions to whats_new
Further expansion of the precision_recall curve explanation, spelling corrections, and general cleanup.
Added random_state argument to svm.SVC