fix: testing to use numpy tester directly without extensive customization
fix: cleaned up nipype testing framework
fix: clean up fsl model tests.
fix: changed input name for 3dallineate
tst: added missing doctest file maps.nii
Merge pull request #564 from satra/fix/testing

FIX: updated testing so that nipype.test(doctests=True) works fine
tst: added doctest ellipses to fix afni tests
Merge pull request #566 from satra/fix/testing

tst: added doctest ellipses to fix afni tests