WIP: raw file splitting
read split files, tests
better test
update whats new
fix Travis test..
use number for files that don't have next fname
FIX: Fix test
Merge pull request #1381 from Eric89GXL/raw_split

ENH: Raw split
Regression examples
Create regression module, factor out lstsq from examples
Eliminate classes
docstrings
FIX: ols_epochs.
The arg 'regressor_names' was assigned but never used. Instead 'names' is used throughout. Made it consistent to prevent errors.
ENH: addresses API/style-related comments
STY changes

RM unnecessary import
ADD test, STY changes
ENH: remove data simulation from test
ENH: add desc
cleanup regression
improve example + update doc