Maint/post release

See merge request fsl/fslpy!57

BF: Image.ndims (deprecated) was broken

See merge request fsl/fslpy!56

Maint/conda deploy

See merge request fsl/fslpy!55

Rf/wrapper updates

See merge request fsl/fslpy!54

stdout/stderr streams go.

gives $FSLDEVDIR precedence, and also allows a global override.

stdout/stderr, and also redirects it to real stdout/stderr.

get image data as numpy array.

Support fsl data image in wrappers

See merge request fsl/fslpy!53

More label atlas bug fixes

See merge request fsl/fslpy!52

AtlasDescription.labels list.

Updates to atlases

See merge request fsl/fslpy!51

    - not all atlases have a 2mm version
    - label atlas value does not correspond to its index in the
      AtlasDescription.labels list.