Updated patch to gmx 5.1.2

patches/gromacs-5.1.2.diff/src/gromacs/CMakeLists.txt

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patches/gromacs-5.1.2.diff/src/gromacs/mdlib/force.cpp

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patches/gromacs-5.1.2.diff/src/gromacs/mdlib/minimize.cpp

...omacs-5.1.2.diff/src/gromacs/mdlib/minimize.cpp.preplumed

patches/gromacs-5.1.2.diff/src/programs/mdrun/md.cpp

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patches/gromacs-5.1.2.diff/src/programs/mdrun/mdrun.cpp

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patches/gromacs-5.1.2.diff/src/programs/mdrun/repl_ex.cpp

...omacs-5.1.2.diff/src/programs/mdrun/repl_ex.cpp.preplumed