- explicitly mention the value-initialized status for the operator().
  This means that the following code will properly use an initialized
  zero.

      HashTable<label> regionCount;

      if (...)
         regionCount("region1")++;

      ... and also this;

      if (regionCount("something") > 0)
      {
          ...
      }

  Note that the OpenFOAM HashTable uses operator[] to provide read and
  write access to *existing* entries and will provoke a FatalError if
  the entry does not exist.

  The operator() provides write access to *existing* entries or will
  create the new entry as required.
  The STL hashes use operator[] for this purpose.

- more hash-like methods.
  Eg, insert/erase via lists, clear(), empty(),...

- minVertex(), maxVertex() to return the smallest/largest label used

- improved documentation, more clarification about where/how negative
  point labels are treated.

BUG: wall/patch distance and inverseDistanceDiffusivity - updated dimensions and use meshWave as a default method for backwards compatibility.  Fixes #462

Dict lookup

See merge request !105

Use updated edge and labelPair containers

See merge request !106

Updated random numbers

See merge request !107

ENH: turbulentDFSEMInlet - ensure different procs initialise the random number generator with a different seed

- old Random class deprecated
- cachedRandom renamed Random

- simplifies organization, allows reuse.
  provide some other useful hash types.

- for loading single or multiple surface files from constant/triSurface
  (or other) directory.

- select based on word, wordRe, wordReList.

- performance improvement. Noticed while examining issue #458

- avoids some duplicate code.

- cannot use comparison of list sizes. Okay for UList, but not here.

STYLE:
- don't need two iterators for the '<' comparison, can just access
  internal storage directly

- The existing ':' anchor works for rvalue substitutions
  (Eg, ${:subdict.name}), but fails for lvalues, since it is
  a punctuation token and parse stops there.

- can be used to reduce copying

- makes more sense to bundle it with plane.

ENH: OBJstream output for treeBoundBox

- improves flexibility.

STYLE: make longestEdge a face method and deprecate the global function

- support edge-ordering on construction, and additional methods:
  - sort(), sorted(), unitVec(), collapse()

- null constructor initializes with -1, for consistency with face,
  triFace and since it is generally much more useful that way.

- add some methods that allow edges to used somewhat more like hashes.
  - count(), found(), insert(), erase()

  Here is possible way to use that:

      edge someEdge;  // initializes with '-1' for both entries

      if (someEdge.insert(pt1))
      {
         // added a new point label
      }

      ... later

      // unmark point on edge
      someEdge.erase(pt2);

--

STYLE:

- use UList<point> instead of pointField for edge methods for flexibility.

  The pointField include is retained, however, since many other routines
  may be relying on it being included via edge.H

- filter out degenerate edges
- remove unused points

STYLE: remove unused mergePoints() parameter

STYLE: doxygen for edgeMesh

- suppress error messages that appear with zsh.
  According to unset(1p), 'unset -f' unsets a function.
  If the function was not previously defined, this is a no-op.
  This is similar for zsh, but there it emits a warning if the
  function was not previously defined.

- avoid 'local' in functions sources from etc/bashrc.
  ksh does not support this.

- use 'command' shell builtin instead of 'type'.
  Seems to be more consistent between shell flavours.

- POSIX specifies '-c' for counting the number of matching lines,
  so we can just use that instead of 'wc' in wmake

- if called from the top-level project directory ($WM_PROJECT_DIR)
  default to using {applications,src} directories. This avoids
  erroneous linking of etc/codeTemplates and avoids the lengthy
  scanning of the tutorials directory

- use InfoSwitch to disable, or via static method.

- respect the state of the argList banner when deciding to emit
  initialization information. Can otherwise end up with unwanted
  output rubbish on things like foamDictionary and foamListTimes.

- patch from Bernhard Gschaider

BUG: adding case path to support parallel execution (Fixes #449)

Closes #449

See merge request !101