Enable lowb greater than zero in b0_average
fix error
fixed ants ApplyTransformInputSpec

changed argstr for default_value to allow floats by using %g instead of
%g
Updated ApplyTransform Specs
Merge pull request #985 from blakedewey/master

fixed ants ApplyTransformInputSpec
Merge pull request #981 from oesteban/enh/ImproveLowbAverage

Improve lowb averaging
fix: ensure ipython engine is not left in an undefined directory - closes #983
Merge pull request #987 from satra/fix/ipython

fix: ensure ipython engine is not left in an undefined directory - close...
Merge remote-tracking branch 'upstream/master' into enh/spmnormalize

* upstream/master:
  fix: ensure ipython engine is not left in an undefined directory - closes #983
  Updated ApplyTransform Specs
  fixed ants ApplyTransformInputSpec
  fix error
  Enable lowb greater than zero in b0_average
fix: test fixes for spm and rename interface
Merge pull request #1 from satra/enh/spmnormalize

Enh/spmnormalize