revert changes in isfinite for a roblem on Windows.  In Windows R__ANSISTREAM is defined and std::isfinite does not exist
revert changes in isfinite for a roblem on Windows. 
In Windows R__ANSISTREAM is defined and std::isfinite does not exist


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@41690 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root