peak_extraction can now return peaks directions
peaks_from_model now uses ndindex instead of enumerate
shape as a tuple broke some tests and the function, now fixed
Added ndindex changes that got mixed up somewhere else
Travis got stuck, making it rebuild.
replace warning.wartn with warnings.warn

The import is on warnings, but none of the call had an s, thus failling instead of simply warning
fixed typo
Merge pull request #225 from samuelstjean/patch-1

Fix typo
SetInput in vtk6 is now SetInputData
Fix closing upon download completion in fetcher
Added vtk version under have_vtk
Merge pull request #226 from Garyfallidis/fix-vtk6

SetInput in vtk5 is now SetInputData in vtk6
NF: Added histogram based brain or foreground extraction
DOC added docstring example in hist_mask
DOC tiny change
BF: Minor change in Mmarkov.py replaced offending hyphen
Updated Stefan's suggestions on github
BF: np.percentile didn't work correctly with real brain
added a brain extraction example on the Standford Data
DOC: initiating brain_extraction example