fsl invertwarp
Merge branch 'master' into fsl_warputils

* master: (21 commits)
  Fixed error in _rotate_bvec that was adding an extra entry to the output rotated_bvecs file and offsetting the correction by one volume.
  add Bandpass to init
  homogenize name function accross interfaces
  fixing for new gen_filename autopep8
  autopep8
  few interfaces added, pep8
  add min version for bbr options
  pep8
  doctest
  Modified create_dmri_preprocessing to allow for pipeline use with and without fieldmap files  - Added use_fieldmap flag to create_dmri_preprocessing
  fixes
  inverse deformation field
  typo
  adding fsl6 options (bbr)
  fixing ApplyInverseDeformationOutputSpec bug
  Revert "simplify in_file"
  simplify in_file
  merge
  mock changes
  trailing comma fix
  ...
autopep8
add an example
Fixed tests.
Changelog.
Merge branch 'fsl_warputils'

Conflicts:
	CHANGES