applications/test/rigidBodyDynamics/spring: Test of the linear spring with damper restraint
Damped simple harmonic motion of a weight on a spring is simulated and
the results compared with analytical solution

    Test-spring
    gnuplot spring.gnuplot
    evince spring.eps

This development is sponsored by Carnegie Wave Energy Ltd.

rigidBodyDynamics/bodies/subBody: Changed "parent" to "master" to avoid confusion with the parent to which this composite body is joined

Added support for composite joints including a specialized 6-DoF form for floating bodies.

rigidBodyDynamics/bodies: Complete set of clone functions to support copy construction and assignment

e.g. (fvc::interpolate(HbyA) & mesh.Sf()) -> fvc::flux(HbyA)

This removes the need to create an intermediate face-vector field when
computing fluxes which is more efficient, reduces the peak storage and
improved cache coherency in addition to providing a simpler and cleaner
API.

dotInterpolate interpolates the field and "dots" the resulting
face-values with the vector field provided which removes the need to
create a temporary field for the interpolate.  This reduces the peak
storage of OpenFOAM caused by the divergence of the gradient of vector
fields, improves memory management and under some conditions decreases
run-time.

This development is based on a patch contributed by Paul Edwards, Intel.

to allow the construction of vtables for virtual member functions
involving the inner-products of fields for which a "NotImplemented"
specialization for scalar is provided.

src/Pstream/mpi/UPstream.C: Cast-away const-ness for backard-compatibility with OpenMPI versions  < 1.7.4
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=2044

applications/test/rigidBodyDynamics/pendulum: Simplified using sphere constructor and body lookup by name

rigidBodyDynamics: Added sphere body to simply construction of articulated bodies containing spheres

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=2041

Patch contributed by Bruno Santos
Resolved bug-report http://www.openfoam.org/mantisbt/view.php?id=2042

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=2041

applications/test/rigidBodyDynamics/pendulum: Very simple test/demonstration of the rigidBodyDynamics library

    Simple swinging pendulum simulation with 1-DoF.  The motion is integrated
    using a symplectic method for just over 2-periods.

Based on the principles, algorithms, data structures and notation
presented in the book:

    Featherstone, R. (2008).
    Rigid body dynamics algorithms.
    Springer.

This development is sponsored by Carnegie Wave Energy Ltd.

    //- Disallow default shallow-copy assignment
    //
    //  Assignment of UList<T> may need to be either shallow (copy pointer)
    //  or deep (copy elements) depending on context or the particular type
    //  of list derived from UList and it is confusing and prone to error
    //  for the default assignment to be either.  The solution is to
    //  disallow default assignment and provide separate 'shallowCopy' and
    //  'deepCopy' member functions.
    void operator=(const UList<T>&) = delete;

    //- Copy the pointer held by the given UList.
    inline void shallowCopy(const UList<T>&);

    //- Copy elements of the given UList.
    void deepCopy(const UList<T>&);