For non-premixed combustion using sensible enthalpy.

orientation != I at start.

Being more careful with when using directions relative to the absolute
axes or the direction of something relative to its initial direction.

Renaming p0, v0 to pInitial, vInitial to be clearer.

fixedOrientation constraint does not need a reference orientation, as
it is not to move at all, relative to any orientation, so the
Cartesian axes are fine.

initialOrientation.

Rename of IO to more understandable terms.  Rename ref to initial
where correct - ref is to do with the object being in Q = I state,
inital is to do with where things are when the motion starts and
pointDisplacement and value are zero.

Adding initialOrientation so that non Q = I initial states are
correct.

- sets turbulence viscosity to zero for the patch
- providees access to the yPlus() function so that the yPlusRAS utility gives
  sensible values

Uses globalMeshData::mergePoints to topologically merge mesh points.
Also now require all patches on all processors so cleaned up all code for
handling zero-sized patches.

- Added helper classes to simplify the handling of the injector properties
- Added new reacting multiphase injection model variant

Now mapDistribute structure to pull data from slaves to master and vice versa.

In case of differing pointsInstance and facesInstance it will
- read the points belonging to the facesInstance
- construct and write the mesh belonging to the facesInstance
  (so with the old, facesInstance, points)
- additionally write the current points to pointsInstance

- This avoids dependency on lex/flex and provides better encapsulation
  for buffer switching. As a result, the maximum number of open files
  only corresponds to the include depth.

- handles basic operations, references to other dictionary entries
  (with '$name' syntax) and assorted mathematical functions:

      pi(), degToRad, radToDeg, asin, acos, atan, sin, cos, tan, log,
      log10, mag, atan2, pow

The basic syntax: #calc{ ... };

NOTE the trailing ';' is required for the primitiveEntry to be
properly defined.

Now storing name of restrain or constraint in list in the
sixDoFRigidBodyMotion object.  Added a write method to all constraints
and restraints.

Now storing name of restraint or constraint in wordList in the
sixDoFRigidBodyMotion object.  Added a write method to all constraints
and restraints.

wordLists.

BUG: sixDoFRigidBodyMotion.  Fixing naming of maxConstraintIterations_
inconsistency.

foamToEnsight will merge points on coupled patches. (only for mesh, not for
patches)