Merge branch 'tidy/tidy-up-solvers2' into 'master'

CHANGELOG.md

solvers/ADRSolver/EquationSystems/CFLtester.h

solvers/ADRSolver/EquationSystems/EigenValuesAdvection.cpp

solvers/ADRSolver/EquationSystems/EigenValuesAdvection.h

solvers/ADRSolver/EquationSystems/Helmholtz.h

solvers/ADRSolver/EquationSystems/Laplace.h

solvers/ADRSolver/EquationSystems/MMFAdvection.h

solvers/ADRSolver/EquationSystems/Poisson.h

solvers/ADRSolver/EquationSystems/Projection.h

solvers/ADRSolver/EquationSystems/SteadyAdvectionDiffusion.h

...Solver/EquationSystems/SteadyAdvectionDiffusionReaction.h

solvers/ADRSolver/EquationSystems/UnsteadyAdvection.cpp

solvers/ADRSolver/EquationSystems/UnsteadyAdvection.h

...rs/ADRSolver/EquationSystems/UnsteadyAdvectionDiffusion.h

solvers/ADRSolver/EquationSystems/UnsteadyDiffusion.cpp

solvers/ADRSolver/EquationSystems/UnsteadyDiffusion.h

...ers/ADRSolver/EquationSystems/UnsteadyInviscidBurgers.cpp

solvers/ADRSolver/EquationSystems/UnsteadyInviscidBurgers.h

...ers/ADRSolver/EquationSystems/UnsteadyReactionDiffusion.h

solvers/ADRSolver/EquationSystems/UnsteadyViscousBurgers.h