BUG: Update BRAINSTools to fix loading of bspline transform

Note that the corresponding change has also been submitted as
a pull request in the official BRAINSTools repo.
See https://github.com/BRAINSia/BRAINSTools/pull/194

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Author: Andras Lasso <lasso@queensu.ca>
Date: Fri Jun 19 15:33:03 2015 -0400

BUG: Fixed loading of bspline transform

The transformFileType and typename were inconsistent.

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git-svn-id: http://svn.slicer.org/Slicer4/trunk@24348 3bd1e089-480b-0410-8dfb-8563597acbee