More rename in the sgd module.

scikits/learn/linear_model/__init__.py

scikits/learn/linear_model/base.py

scikits/learn/linear_model/setup.py

scikits/learn/linear_model/sgd_fast.c

scikits/learn/linear_model/sgd_fast.pxd

scikits/learn/linear_model/sgd_fast.pyx

scikits/learn/linear_model/sgd_fast_sparse.c

scikits/learn/linear_model/sgd_fast_sparse.pyx

scikits/learn/linear_model/sparse/__init__.py

scikits/learn/linear_model/sparse/stochastic_gradient.py

scikits/learn/linear_model/stochastic_gradient.py

scikits/learn/linear_model/stochastic_gradient/__init__.py

scikits/learn/linear_model/stochastic_gradient/base.py

scikits/learn/linear_model/stochastic_gradient/setup.py

...learn/linear_model/stochastic_gradient/sparse/__init__.py

...ts/learn/linear_model/stochastic_gradient/sparse/setup.py

.../learn/linear_model/stochastic_gradient/tests/__init__.py

scikits/learn/linear_model/tests/test_sgd.py

scikits/learn/setup.py