remove GMX 5.1.4

CHANGES/v2.5.md

patches/gromacs-5.1.4.config

patches/gromacs-5.1.4.diff/src/gromacs/CMakeLists.txt

...s/gromacs-5.1.4.diff/src/gromacs/CMakeLists.txt.preplumed

patches/gromacs-5.1.4.diff/src/gromacs/mdlib/force.cpp

.../gromacs-5.1.4.diff/src/gromacs/mdlib/force.cpp.preplumed

patches/gromacs-5.1.4.diff/src/gromacs/mdlib/minimize.cpp

...omacs-5.1.4.diff/src/gromacs/mdlib/minimize.cpp.preplumed

patches/gromacs-5.1.4.diff/src/programs/mdrun/md.cpp

...es/gromacs-5.1.4.diff/src/programs/mdrun/md.cpp.preplumed

patches/gromacs-5.1.4.diff/src/programs/mdrun/mdrun.cpp

...gromacs-5.1.4.diff/src/programs/mdrun/mdrun.cpp.preplumed

patches/gromacs-5.1.4.diff/src/programs/mdrun/repl_ex.cpp

...omacs-5.1.4.diff/src/programs/mdrun/repl_ex.cpp.preplumed

patches/gromacs-5.1.4.diff/src/programs/mdrun/repl_ex.h

...gromacs-5.1.4.diff/src/programs/mdrun/repl_ex.h.preplumed

patches/gromacs-5.1.4.diff/src/programs/mdrun/runner.cpp

...romacs-5.1.4.diff/src/programs/mdrun/runner.cpp.preplumed