featdesign.loadDesignMat function

gzip image.

written to, the old coverages are not discarded - rather, the new data range
is calculated on the union of the old coverage and the write slice, across all
volumes.

want the raw codes.

using transposed xforms!

backwards matrix multplication

access. This has been implemented by monkey-patching nibabel.

voxToWorldMat is changed.

xform. Transform module has new flirtMatrixToSform function which
turns a FLIRT matrix into a src -> struc sform transformation.

when it is. New functions in transform module.

changed data.

space as another.

the default file extensions (i.e. the FSLOUTPUTTYPE) - this is used by
the fslpy_immv/imcp command line scripts.

appropriate extension

dictionary. Intead, they use 'file groups', which is conceptually much
easier to understand. New functions splitExt and getFileGroup.

Also added imcp and immv functions, which perform the equivalent of the
FSL imcp/immv scripts (but are more general).

readbuf size, despite profiling showing that it doesn't make much
difference.

when both q/sforms are unknown. Otherwise should default to
nibabel. Also added method to MelodicClassification to return all labels.

passed through to listener functions.

anymore, and might get deleted.