Niworkflows

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* [FIX] Python 2.7 issues and testing (130, 135)
* [ENH] Compress surface segmentation reports (133)
* [ENH] Write bias image in skull-stripping workflow (131)
* [FIX] BBRegisterRPT: Use `inputs.subjects_dir` to find structurals (128)
* [ENH] Fetch full 2009c from OSF (126)
* [ENH] Coregistration tweaks (125)
* [FIX] Be more robust in detecting SVGO (124)
* [ENH] Enable Lanczos interpolation (122)

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* Add parcellation derived from Harvard-Oxford template, to be
used with the nonlinear-asym-09c template for the carpetplot
* Add headmask and normalize tpms in mni_icbm152_nlin_asym_09c
* Update MNI ICBM152 templates (linear and nonlinear-asym)
* Add MNI152 2009c nonlinear-symetric template (LAS)
* Add MNI152 nonlinear-symmetric template
* Add MNI EPI template and parcellation
* Switch data downloads from GDrive to OSF
* Fixed installer, now compatible with python 3

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* Added MRI reorient workflow (based on AFNI)

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* Added skull-stripping workflow based on AFNI
* Rewritten most of the shablona-derived names and description files
* Copied project structure from Shablona