Resolves bug-report http://bugs.openfoam.org/view.php?id=2223

This reverts commit f38f0d3e.

If this clash is allowed boundary conditions set by wildcards are
processed incorrectly.

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2218

  - There will be triangles rendered inside the mesh (when
    surface-rendering), because one of the cell's triangles is defined
    as a quadrangle in VTK_WEDGE.

  - Therefore, this VTK_WEDGE representation is only used when
    decomposing the mesh, otherwise the correct representation is done
    by VTK_POLYHEDRON.

  - Furthermore, using VTK_PYRAMID gave worse result, because it renders
    2 triangles inside the mesh for the collapsed quadrangle, likely due
    to mismatch with the adjacent cell's face.

  - Using VTK_HEXAHEDRON was not tested in this iteration, given that it
    should give even worse results, when compared to using VTK_PYRAMID.

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2099

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2216

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2216

Resolves bug-report http://bugs.openfoam.org/view.php?id=2214

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2213

Patch contributed by Timo Niemi
In response to bug-report http://bugs.openfoam.org/view.php?id=2199

Patch contributed by Bruno Santos
Resolves patch request http://bugs.openfoam.org/view.php?id=2212

  - "$FOAM_USER_APPBIN" and "$FOAM_USER_LIBBIN" have been added to
    "foamOldDirs" in "etc/bashrc" and "etc/config.sh/unset"

  - "$OPAL_PREFIX" is now undefined in the option "SYSTEMOPENMPI" within
    "etc/config.sh/mpi", but only if the path defined in this variable
    is cleaned when using "foamCleanPath".

  - "$OPAL_PREFIX" is now also conditionally undefined in
    "etc/config.sh/unset" when the path is picked up by "foamCleanPath".

Patch contributed by Bruno Santos
Resolved bug-report http://bugs.openfoam.org/view.php?id=2210

Patch contributed by Paul Edwards, Intel.

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2207

Resolves bug-report http://bugs.openfoam.org/view.php?id=2194

Resolves bug-report http://bugs.openfoam.org/view.php?id=2203

Resolves warnings from clang

Resolves compilation failure with clang

Resolves bug-report http://bugs.openfoam.org/view.php?id=2182

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2090

Contributed by Sergey Sindeev

viscosityModels::Casson: Updated constructor to avoid the need to specify the dimensions of the coefficients

Description
    An incompressible Casson non-Newtonian viscosity model.

    References:
    \verbatim
        Casson, N. (1959).
        Rheology of disperse systems.
        In Proceedings of a Conference Organized by the
        British Society of Rheology.
        Pergamon Press, New York.

        Fournier, R. L. (2011).
        Basic transport phenomena in biomedical engineering.
        CRC Press.
    \endverbatim

Contributed by Sergey Sindeev

Description
    Allows specification of different writing frequency of objects registered
    to the database.

    It has similar functionality as the main time database through the
    \c writeControl setting:
      - timeStep
      - writeTime
      - adjustableRunTime
      - runTime
      - clockTime
      - cpuTime

    It also has the ability to write the selected objects that were defined
    with the respective write mode for the requested \c writeOption, namely:
      - \c autoWrite - objects set to write at output time
      - \c noWrite   - objects set to not write by default
      - \c anyWrite  - any option of the previous two

    Example of function object specification:
    \verbatim
    writeObjects1
    {
        type        writeObjects;
        libs        ("libutilityFunctionObjects.so");
        ...
        objects     (obj1 obj2);
        writeOption anyWrite;
    }
    \endverbatim

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2090

Patch contributed by Mattijs Janssens
Resolves patch request http://bugs.openfoam.org/view.php?id=2195

If a suitable face an the receiving side of the AMI cannot be found the
particle is marked for deletion.

Warning messages are generated for each particle deleted