- unify CMakeLists naming and align content

- this avoids a situation when an aborted sourcing of the etc/bashrc
  file can leave WM_SHELL_FUNCTIONS defined, which causes all
  subsequent sourcing to fail.

- check for excess input on command-line arguments

- reduce fileHandler warning verbosity when the output banner is
  disabled

- can be used to test the behaviour of the decomposion and its
  characteristics without writing any decomposition to disk.
  Combine with -cellDist to visualize the expected decomposition
  result.

- canonical parameter name changed from "minMedianAxisAngle" to
  "minMedialAxisAngle" (DEC-2013), but was never previously reported
  as having changed.

- aids with detection of excess tokens (issue #762)

- deprecated dictionary::operator[] in favour of the lookup() method
  which offers more flexibilty and clarity of purpose.
  Additionally, the read<> and get<> forms should generally be used
  instead anyhow.

- FOAM_CONFIG_NOUSER
  Suppress use of user/group configuration files.
  This is useful when packaging for a central installation.

- allow additional user tuning of compiler settings.
  Per-compiler overrides in "compiler-$WM_COMPILER" files

- the vector normalise() method modifies the object inplace,
  the normalised function returns a copy.

      vector vec1(1,2,3);
      vec1.normalise();
  vs
      vector vec1(1,2,3);
      vec1 /= mag(vec1) + VSMALL;

  For const usage, can use either of these

      const vector vec2a(normalised(vector(1,2,3)));
      const vector vec2b(vector(1,2,3).normalise());

- use scalar(0) instead of scalar(0.0) etc

- the original intention was to avoid vtp output when the clouds are
  empty anyhow. However, it is useful for post-processing to have
  clouds with zero parcels (eg, before the start of injection).

  Pruning of empty clouds is now an option in the vtkCloud dictionary
  controls, with the default being false (no pruning). This represents
  a non-breaking change in behaviour since it generates more output
  than previously.

  Example,
  {
      type    vtkCloud;
      //- Suppress writing of empty clouds (default: false)
      prune   true;
  }

DOC: document topo sources inputs in doxygen format

ENH: check for excess tokens in dictionary input (issue #762)

- various bits of code cleanup (modernization) in meshTool/sets.

- had "UName" instead of "U" for the single field lookup.

- char instead of integer representation for the enumeration.

- additional constructor as lookupOrDefault from dictionary entry.

- improve doxygen entries for searchable surfaces.

- support selection of searchable surfaces with shorter names.
  Eg,
      type   box | cylinder | ...;
  vs  type   searchableBox | searchableCylinder | ...;

- was superseded by "libs" in 1612