WIP: explicitly mark all base classes as ABC with abstractmethod inits
Add concrete __init__ for LinearSVM
Add concrete implementation for SGDClassifier
DOC Remove deprecated reference + acknowledge @larsman
BUG: implement concrete __init__ for SGDRegressor
BUG: tests were raising the DataConversionWarning

It appears that when warnings are raised once, they are not reraised
in the tests, thus triggering a failure for the test checking for these
warnings
Merge branch 'pr_2304'

Conflicts:
	sklearn/linear_model/stochastic_gradient.py
Update typedefs.pxd with correct ITYPECODE
MAINT: recompile Cython files
DOC: add whats_new on the news
FIX for MSVC inline fmin, fmax and log2
FIX for MSVC inline fmax in dist_metrics
rearrange permutation_score parameters to match previous ones.
TST: adjust test relying on change order
Add LibSVM random state to changelog
FIX backward compatibility was broken
MISC: deprecate balance_weights (it's internal)
What's new: put major 0.14 additions in first
Ignore the generated MANIFEST file
Fixed a typo in a contributor's name