Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1658

Updated tutorials to converge pressure during PIMPLE loop to avoid
phase-fraction unboundedness which limits thermodynamics convergence.

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1649

twoPhaseEulerFoam/interfacialModels/turbulentDispersionModels/noTurbulentDispersion: Corrected dimension of D

twoPhaseEulerFoam/interfacialModels/turbulentDispersionModels/Burns: Corrected sign of the diffusivity

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1653
Thanks to Armin Wehrfritz for proposed fixes

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1650
Thanks to Timo Niemi

This allows for more than one of these data types to be specified in a dictionary
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1652

e.g.
        <entryName> csvFile;
        <entryName>Coeffs
        {
            nHeaderLine         4;
            refColumn           0;          // reference column index
            componentColumns    (1 2 3);    // component column indices
            separator           ",";        // optional (defaults to ",")
            mergeSeparators     no;         // merge multiple separators
            fileName            "fileXYZ";  // name of csv data file
            outOfBounds         clamp;      // optional out-of-bounds handling
            interpolationScheme linear;     // optional interpolation scheme
        }

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1650

Reduces or eliminates staggering patterns due to cell-force imbalances
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1363

Improves stability and convergence of systems in which drag dominates
e.g. small particles in high-speed gas flow.

Additionally a new ddtPhiCorr strategy is included in which correction
is applied only where the phases are nearly pure.  This reduces
staggering patters near the free-surface of bubble-column simulations.

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1112

Thanks to Bruno Santos for analysing and fixing this
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1633

Roselves bug-report http://www.openfoam.org/mantisbt/view.php?id=1581

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1638

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1637

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1421

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1024

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=815

mixtureKEpsilon: Changed bounded non-conservative transport flux to be volumetric rather than mass-based
Avoids numerical problems caused by large density gradients, particularly around the interface.
Allows the use of higher-order differencing for km and epsilonm

Resolves bug-report http://openfoam.org/mantisbt/view.php?id=1579

Also changed internalDegreesOfFreedom to be an integer type

Also corrected names of other fields

to avoid excessive pressure/buoyancy balance errors on non-orthogonal meshes

twoPhaseEulerFoam JohnsonJacksonFrictionalStress: alphaDeltaMax now user input (previously hard-coded to 5e-2)

to avoid excessive pressure/buoyancy balance errors on non-orthogonal meshes
Resolves bug-report http://openfoam.org/mantisbt/view.php?id=1379

Allows the specification of a reference height, for example the height
of the free-surface in a VoF simulation, which reduces the range of p_rgh.

hRef is a uniformDimensionedScalarField specified via the constant/hRef
file, equivalent to the way in which g is specified, so that it can be
looked-up from the database.  For example see the constant/hRef file in
the DTCHull LTSInterFoam and interDyMFoam cases.