Niworkflows

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* [ENH] Remove extensions from the nifti header (`226 <https://github.com/nipreps/niworkflows/pull/226>`_)
* [FIX] Fixing conda version (`227 <https://github.com/nipreps/niworkflows/pull/227>`_)
* [TST] Speed-up long tests (`225 <https://github.com/nipreps/niworkflows/pull/225>`_)
* [TST] Migrate to CircleCI 2.0 (`224 <https://github.com/nipreps/niworkflows/pull/224>`_)

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* [ENH] Added SanitizeImage interface (https://github.com/nipreps/niworkflows/pull/221)

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* [FIX] broken normalization retries (https://github.com/nipreps/niworkflows/pull/220)

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* [PIN] Nipype 1.0.0

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* [PIN] Pinning nipype to oesteban/nipype (including
nipy/nipype2383, nipy/nipype2384, nipy/nipype2376)

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* [PIN] Pinning nipype to nipy/nipype (including
https://github.com/nipy/nipype/pull/2373)