Fix warnings in multiclass module tests.
Cloned @jakevdp's pinvh tests
Merge pull request #1000 from amueller/qda_lda_1000

MRG Qda and LDA cleanup, arbitrary class labels
DOC: better narrative for char_wb text analyzer + add a whats_new entry
Remove duplicated line.
Remove odd-looking period in tests
TST: change LLE test to stable seed
DOC: fix documentation of arpack
typo in linear_model doc
ENH add verbosity parameter to cross_validation_score
MISC catch warnings in covariance tests
Use pinvh in plot_sparse_recovery example
grammar
Use pinvh in bayes.py
Typo in last commit :-/ sry
Use pinvh in GMM and DPGMM
ENH catch expected warning in ward clustering
ENH renamed ``min_n`` and ``max_n`` parameters in CountVectorizer to enable gridsearch over them together.
ENH renamed parameter bounds_n to ngram_range, fixed doctests and tests.
ENH addresses @ogrisel's comments