Merge branch nektar:master into master

solvers/ADRSolver/EquationSystems/Helmholtz.cpp

solvers/ADRSolver/EquationSystems/Helmholtz.h

solvers/ADRSolver/EquationSystems/Laplace.cpp

solvers/ADRSolver/EquationSystems/Laplace.h

solvers/ADRSolver/EquationSystems/MMFAdvection.cpp

solvers/ADRSolver/EquationSystems/MMFAdvection.h

solvers/ADRSolver/EquationSystems/Poisson.cpp

solvers/ADRSolver/EquationSystems/Poisson.h

solvers/ADRSolver/EquationSystems/Projection.cpp

solvers/ADRSolver/EquationSystems/Projection.h

...rs/ADRSolver/EquationSystems/SteadyAdvectionDiffusion.cpp

solvers/ADRSolver/EquationSystems/SteadyAdvectionDiffusion.h

...lver/EquationSystems/SteadyAdvectionDiffusionReaction.cpp

...Solver/EquationSystems/SteadyAdvectionDiffusionReaction.h

solvers/ADRSolver/EquationSystems/UnsteadyAdvection.cpp

solvers/ADRSolver/EquationSystems/UnsteadyAdvection.h

solvers/ADRSolver/EquationSystems/UnsteadyDiffusion.cpp

solvers/ADRSolver/EquationSystems/UnsteadyDiffusion.h

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

solvers/ADRSolver/EquationSystems/UnsteadyInviscidBurgers.h