Merge pull request #21 from frakkopesto/master

Added SNR calculations to dwiGet, with correction for small samples.
This file was moved to the deprecate directory and lost in the migration to git. However, it is needed by some functions, including rmEditStimParams
ENH: I upgreaded a call to ndims with ismatrix by following the MatWorsk suggestion.
Merge branch 'master' of https://github.com/vistalab/vistasoft