- disallow insert() of raw pointers, since a failed insertion
  (ie, entry already existed) results in an unmanaged pointer.

  Either insert using an autoPtr, or set() with raw pointers or autoPtr.

- IOobjectList::add() now takes an autoPtr instead of an object reference

- IOobjectList::remove() now returns an autoPtr instead of a raw pointer

- use refCount instead of the tmp<...>::refCount alias

- tie the MPI rules to the base compiler type *without* its version.
  Eg, linux64Gcc (which exists) instead of linux64Gcc81

- use normal instead of volumeType to decide on the sign.
  This provides a continuous field and eliminates special handling of
  GREAT in iso-surface routines.

- fix regression in isoSurfaceCell cutting that was introduced by the
  previous adjustments for distanceSurface

- this enables x,y,z access of lagrangian positions, which is useful
  for postprocessing in paraview, but at the expense of slightly
  more disk space.

- input or output scaling of values to manage dissimilar unit systems
  in the structures model

- logging of communicated force, moments and updated positions.
  This allows tracking of the information exchange throughout the
  duration of the simulation and may assist in post-simulation diagnosis.

- relocated from
    etc/caseDicts/postProcessing/catalyst/ -> etc/caseDicts/insitu/catalyst/

- adjusted for unified catalyst function object

- default is now without polyhedral decomposition, since this produces
  compacter files and VTK mananges this in most instances.
  However, provide function object flag to reinstate the old behaviour.

    Calculates and outputs a field whose values are offset to a reference
    value obtained by sampling the field at a user-specified location.

    The field values are calculated using:

    \f[
        f_c = s(f_{c,t} - f_p + f_{off})
    \f]

    where
    \vartable
        f_c     | field values at cell
        s       | optional scale factor (default = 1)
        f_{c,t} | current field values at cell at this time
        f_p     | field value at position
        f_{off} | offset field value (default = 0)
    \endvartable

Usage
    Example of function object specification to calculate the reference
field:
    \verbatim
    pRef
    {
        type        reference;
        libs        ("libfieldFunctionObjects.so");
        ...
        field       p;
        result      pRef;
        position    (0 0 0);
        scale       1.2;
        offset      100000;
    }
    \endverbatim

- now treat all mesh geometries as moving, since we cannot know
  beforehand if this is the case.

- allows processing of the data during the calculation.

- prevents accidental overwrite of runtime conversions.

- use same data mask width as ensightCase (8 digits)

- consolidate geometry time steps with data time steps if possible,
  for a cleaner case file.

- catch (value)
- forward declarations for operator<<()
- non-const access to Reaction name()
- spurious return statement