COMP: Update BRAINSTools to fix windows build error

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Author: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>
Date: Fri May 15 19:09:32 2015 -0400

COMP: Fix windows build error related to non existing std::isnan function

std::isnan has been introduced in C++11 and Visual Studio 2008 doesn't
support it.

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Author: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>
Date: Fri May 15 18:56:16 2015 -0400

COMP: Fix windows build error due to already defined GetBValue macro

This commit applies as fix similar to InsightSoftwareConsortium/ITK@8ec410c0

It avoids the windows macro "GetBValue" to conflict with the
declaration of DWIMetaDataDictionaryValidator::GetBValue()

On windows, the macro is usually defined in "WinGDI.h" itself included by
"Windows.h".

git-svn-id: http://svn.slicer.org/Slicer4/trunk@24261 3bd1e089-480b-0410-8dfb-8563597acbee