Script to take a collection of datasets and transform them
to 1x1x1 mm MNI space with an affine transformation.
These datasets should already have been skull-stripped.

Usage: @toMNI_Awarp dirname dataset1 dataset2 ...

where 'dirname' is the name of the directory which will be created and
then get the results, and 'dataset1 dataset2 ...' is a list of datasets
to be transformed.

The results can further be nonlinearly registered to form a template