intersection and boundary operators added

dune/amdis/Assembler.hpp

dune/amdis/BoundaryElementIterator.hpp

dune/amdis/DirichletBC.inc.hpp

dune/amdis/FileWriter.hpp

dune/amdis/FirstOrderAssembler.hpp

dune/amdis/Flag.hpp

dune/amdis/Operator.hpp

dune/amdis/Operator.inc.hpp

dune/amdis/OperatorEvaluation.hpp

dune/amdis/OperatorTermBase.hpp

dune/amdis/ProblemStat.hpp

dune/amdis/ProblemStat.inc.hpp

dune/amdis/QuadratureRules.hpp

dune/amdis/SecondOrderAssembler.hpp

dune/amdis/TraceGridView.hpp

dune/amdis/ZeroOrderAssembler.hpp

dune/amdis/common/TypeDefs.hpp

dune/amdis/linear_algebra/LinearSolverInterface.hpp

dune/amdis/linear_algebra/RunnerInterface.hpp

dune/amdis/linear_algebra/SolverInfo.hpp