- The properties "AMGPDELabBackend" and "AMGLocalFemMap" are unified to
  "AmgTraits". Since they appear to have been used only internally and
  deprecation is technically difficult, no deprecation is made.

- Remove setting of the property "SolutionVector", since it only resets
  the defaults.

- Deprecate the classes "SeqAMGBackend" and "ScaledSeqAMGBackend". The
  "AMGBackend" already distinguishes between serial and parallel
  settings. The scaling should be done for the residual already.

- Deprecate the class "P0LocalFiniteElementMap" which was only used for
  the PDELab-based backend.

- Remove occurrences of "PDELab" in the comments.

Reviewed by gruenich.



git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@14162 2fb0f335-1f38-0410-981e-8018bf24f1b0