The dummyThirdParty tree builds libraries which are drop-in
(but non-functional) versions of some thirdparty libraries. This will
make it easier to ship binary versions without having to ship thirdparty packs.

Move compilation edgeMesh and surfMesh up in the list
(they are independent of triSurface).

- in preparation for adding an optional '-reconstruct' to a few utilities
  re-use as -lreconstruct library

- move related stuff there too
      src/decompositionMethods/decompositionMethods
      -> src/parallel/decompositionMethods

- added missing namespace qualifiers

http://www.cfd-online.com/Forums/openfoam-bugs/69141-compilation-order-single-precision-issues.html

- Unless the points(), cells(), patches() methods are called, the classes
  should know maintain a lightweight representation for as long as possible.

- bugfix: old-code used xferMove() instead of xferCopy() when creating the
  topology mesh - causing const pointField& to break if the code order was
  changed

- relocate blockMesh from src/meshing -> src/mesh

- solves problems that can occur when checking $PWD and links are involved

- also have it use LIB_LIBS to always load finiteVolume

- change name of environment variable from $WM_OS -> $WM_OSTYPE
  as a better description

- this seems to be the most sensible solution.
  The changed time stamps on the links doesn't seem to bother make at all.

- 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