Fixes wallBoiling mentioned in #141

snappyHexMesh filters out zero-sized patches so no more createPatches.
Fixes part of #152

- broken by commit 2027059b (2016-03-09) where the pTraits
  nComponents type was changed from int to Foam::direction

for initialising 'complex' bcs. Instead now 'clone' from p. Fixes #153.

since growing single cells just makes the zoneing inconsistent with the
surface intersections (so you don't have a patch when converting surface
intersections to baffles)

BUG: Fixing wideBandDiffusiveRadiationMixed in calculation of incident radiation on wall for wide band model.

BUG: cyclicACMI: make conservative and remove faceAreas0

Need to review cyclicACMI patch non-overlap values
- values here preserve initial values only
- snGrad - used?
- wall functions - no longer call updateCoeffs with ACMI weights (?)

See merge request !46

The problem was the demand-loading of the functionObjectProperties
IOdictionary which can cause parallel communication (if timeStampMaster
it scatters the headerOk status). So call setProperty on all processors!
Fixes #118.

Test with #122

Fixes the simpleShapes failure in #141

This is a bit complicated. When allocating cells to zones
(meshRefinementBaffles::zonify) in finishes with findCellTopo which
tried to fix the odd cell which wasn't put into the correct region. This
was actually modifying whole regions to be a certain cellZone so if
there was some 'bleeding' it would re-assign a whole region to be e.g.
background and get deleted. Instead it now will only reassign single
cells if these are
- unassigned
- inbetween multiple, differing cellZones

Fixes the simpleFoam/rotorDisk meshing (gitlab #141)

- cyclicACMIFvPatchField::updateCoeffs() now again redirects to
fvPatchField::updateCoeffs(const scalarField& weights);
- which redirects to fvPatchField::updateCoeffs();
- except on wall functions where the weights are used to switch off
  turbulence generation
- renamed the updateCoeffs on the fixedFluxPressure bc to updateSnGrad.

Multiple updates for run-time post-processing functionality



See merge request !39

and adding tutorial