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Alexey Matveichev authored Jun 01, 2018 and Mark Olesen committed Jun 01, 2018

- CGAL Triangulation_2.h (version 4.12) defines a point function,
  which interferes with the Foam::point typedef.

- this addresses issue #843

- Always used for optional dictionary entries, since these are individual
  values, and not meant to be embedded in a larger stream of tokens.

  Methods:
     - lookupOrDefault, lookupOrAddDefault, lookupOrDefaultCompat
     - readIfPresent, readIfPresentCompat

- Handling mandatory dictionary entries is slightly more complex,
  since these may be part of larger stream of tokens, and are often
  used in a constructor context. For example,

      word modelType(dict.lookup("type"));

  Or they are used without a definite context. For example,

      dict.lookup("format") >> outputFormat;

  Newly introduced methods for mandatory dictionary entries:
     - get, getCompat
     - read, readCompat

  In a constructor or assignment context:

      word modelType(dict.get<word>("type"));
      outputFormat = dict.lookup("format");

  without copy/move (similar to readIfPresent):

      dict.read("format", outputFormat);

- this is consistent with compiler defaults, and helps Darwin users

- resolve in favour of "inline explicit", which had marginally more
  uses and provides consistent prefixing for inline methods.

- make the purpose more explicit, and reduces some work for the
  compiler as well.

- improves backward compatibility and more naming consistency.
  Retain setMany(iter1, iter2) to avoid ambiguity with the
  PackedList::set(index, value) method.

- required for std::iterator_traits specialization, which is used by
  the std::max_element algorithm on Darwin.

- consistency with make and more succinct.

- reduce code duplication in findEtcFiles.

Basic directional refinement:
- only for coordinate aligned meshes
- only for refinementRegions
See the mesh/snappyHexMesh/aerofoilNACA0012_directionalRefinement
tutorial.

Haakan Nilsson authored May 17, 2018 and Mark Olesen committed May 17, 2018

- the current working path with replacements for base-level
  OpenFOAM env variables such as FOAM_RUN, WM_PROJECT_DIR,
  WM_PROJECT_USER_DIR etc

  Can be used directly from the command-line or embedded into a
  command prompt. For example,

      PS1='$(foamPwd)\n\u\$ '

- aliases for user solver/utilities located under "$WM_PROJECT_USER_DIR":
  (ufoam, uapp, usol, uutil)