Updated the ChangeLog.txt to reflect the changes in the SysGnuLinux.f90 / SysGnuWin.f90 files.
Updated the ChangeLog.txt to reflect the changes in the SysGnuLinux.f90 / SysGnuWin.f90 files.

git-svn-id: 73c5e9be61741f0643e0befefbf0388e40c6b5c0@24 33a3f72e-afca-4cba-af91-dee07167dc2f

OpenFAST/OpenFAST,OpenFAST/OpenFAST,OpenFAST/OpenFAST