Explicitly correct laminar transport at the application level as is done in the multiphase solvers

wrmo: Add -a/-all/all option to remove .o files from all platforms rather than just the current platform.

Description
    Remove all .o files from the object directory tree corresponding to the
    current source derectory or remove only the .o file corresponding to the
    optionally specified [file].

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1485

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1484

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1483

Improves efficiency for moving-mesh cases

advectionDiffusionPatchDistMethod: Calculation of approximate distance to nearest patch for all cells
and boundary by solving the Eikonal equation in advection form with diffusion smoothing.

wallDist/patchDistMethods/Poisson: New method for fast calculation of an approximate wall-distance field
by solving Poisson's equation

Currently these vectors are generated at the same time as the wall-distance field
by the same run-time selected algorithm.  This will be changed so that the wall-reflection
vectors are only generated and stored if required.