- For example,
    // optionally define extra controls for the output formats
    formatOptions
    {
        ensight
        {
            format  binary;
        }
    }

These are passed to the writer that support a dictionary of options.
Otherwise the normal null constructor is used.

STYLE: move DataEntry to OpenFOAM/primitives/functions

- pointSolid->solidProperties
- pointSolidMixure->solidMixtureProperties
- liquids->liquidProperties
- liquidMixture->liquidMoxtureProperties

(setting typeName to word::null only handled by IOdictionary)

This reverts commit 2e1e671d.

This reverts commit b18f6cc1.

- platforms/WM_OPTIONS/lib
      old: lib/WM_OPTIONS

- platforms/WM_OPTIONS/bin
      old: bin/WM_OPTIONS
      old: applications/bin/WM_OPTIONS

A runtime environment nows needs
    - bin/
    - etc/
    - platforms/

- drop FOAM_MPI_LIBBIN variable in favour of FOAM_MPI from which
  two different locations can be determined.

  Previously there was something like this:

      FOAM_MPI_LIBBIN = $FOAM_LIBBIN/openmpi-1.5.1

  We now instead determine the locations from the FOAM_MPI directly:

      FOAM_MPI=openmpi-1.5.1

          $FOAM_LIBBIN/$FOAM_MPI     -> OpenFOAM  mpi-related
          $FOAM_EXT_LIBBIN/$FOAM_MPI -> ThirdPary mpi-related

ENH: relocate ParaView libraries and plugins back under FOAM_LIBBIN

- as discussed with Mattijs

- remove settings for really old cmake versions

- place under $WM_THIRD_PARTY_DIR/lib/$WM_OPTIONS
- relocate FOAM_MPI_LIBBIN accordingly