MAINT Set random_state, modernize tests
TST max_features for more tree estimators
TST remove unused tests
ENH add missing pxd of utis.random
ENH Use file configuration
FIX signature
cosmetic: Changed all instances of nonlinear to non-linear
Merge pull request #2187 from FedericoV/non_negative_style

cosmetic: Changed all instances of nonlinear to non-linear
Add fit_transform to FastICA.
Add inverse_transform to FastICA.
Add docstrings to methods in FastICA.
Address @dengemann's comments.
Add test.
Push failing test.
FIX transform tests
FIX: remove inplace mod
ENH fit_inverse_transform for FastICA

Modeled after KernelPCA's parameter of the same name.

Conflicts:
	sklearn/decomposition/fastica_.py
DOC document mixing_ attr on FastICA
COSMIT attribute checking in FastICA
COSMITS