Merge branch 'feature/element_matrix_coefficient_type' into 'master'

examples/navier_stokes.cc

src/amdis/Assembler.hpp

src/amdis/AssemblerInterface.hpp

src/amdis/DataTransfer.inc.hpp

src/amdis/Mesh.hpp

src/amdis/OperatorList.hpp

src/amdis/PeriodicBC.inc.hpp

src/amdis/ProblemStat.hpp

src/amdis/ProblemStatTraits.hpp

src/amdis/gridfunctions/DiscreteFunction.hpp

src/amdis/linearalgebra/DOFMatrixBase.hpp

src/amdis/linearalgebra/DOFMatrixBase.inc.hpp

src/amdis/linearalgebra/DOFVectorBase.hpp

src/amdis/linearalgebra/DOFVectorBase.inc.hpp

src/amdis/linearalgebra/eigen/DirectRunner.hpp

src/amdis/linearalgebra/eigen/SolverCreator.hpp

src/amdis/linearalgebra/istl/DirectRunner.hpp

src/amdis/linearalgebra/istl/ISTL_Preconditioner.hpp

src/amdis/linearalgebra/istl/ISTL_Solver.hpp

src/amdis/linearalgebra/mtl/ITL_Solver.hpp