finite area integration

This merge includes the finite-area port from Hrvoje Jasak, a number of integration fixes and preliminary post-processing of finite area meshes/fields.

References

Tukovic, Z: The Finite Volume Method on Domains of Changeable Shape, PhD Thesis, University of Zagreb, Croatia, 2005

Tuković, Željko; Jasak, Hrvoje. A moving mesh finite volume interface tracking method for surface tension dominated interfacial fluid flow. Computers & fluids. 55 (2012) ; 70-84

applications/solvers/doc/solver.dox

@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2015 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2017 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -39,6 +39,7 @@ The available solvers are grouped into the following categories:
   - \ref grpLagrangianSolvers
   - \ref grpMultiphaseSolvers
   - \ref grpStressAnalysisSolvers
+  - \ref grpFiniteAreaSolvers
 
 
 \*---------------------------------------------------------------------------*/