- avoids problems with finding files based on FOAMversion
  (reported by Mattijs)

- added wmakePrintBuild -check, -update, -version options
- only update .build cache when explictly requested and
  from within the wmake Cver rules
- use -check option to avoid unnecessary remake in src/Allwmake

  - keyedSurface is similar to triSurface, but uses faces
  - meshedSurface is sorted in regions and should be more memory efficient
  - surfMesh is the placeholder name for an OpenFOAM native surface format

 * started with polyDualMesh, but add mesh reader/writers in the future