SLList: now a C++11 template alias rather than a wrapper-class.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2181

Now the functionality to write single graph files or log files (vs time)
may be used in the creation of any form of functionObject, not just
those relating to a mesh region.

e.g.
    HashTable<label, string> table1
    {
        {"kjhk", 10},
        {"kjhk2", 12}
    };

    HashTable<label, label, Hash<label>> table2
    {
        {3, 10},
        {5, 12},
        {7, 16}
    };

Requires gcc version 4.7 or higher

FixedList: Add constructors from iterators and C++11 initializer_list using C++11 constructor delegation

Resolves bug-report http://bugs.openfoam.org/view.php?id=2178

Until C++ supports 'concepts' the only way to support construction from
two iterators is to provide a constructor of the form:

        template<class InputIterator>
        List(InputIterator first, InputIterator last);

which for some types conflicts with

        //- Construct with given size and value for all elements
        List(const label, const T&);

e.g. to construct a list of 5 scalars initialized to 0:

    List<scalar> sl(5, 0);

causes a conflict because the initialization type is 'int' rather than
'scalar'.  This conflict may be resolved by specifying the type of the
initialization value:

    List<scalar> sl(5, scalar(0));

The new initializer list contructor provides a convenient and efficient alternative
to using 'IStringStream' to provide an initial list of values:

    List<vector> list4(IStringStream("((0 1 2) (3 4 5) (6 7 8))")());

or

    List<vector> list4
    {
        vector(0, 1, 2),
        vector(3, 4, 5),
        vector(6, 7, 8)
    };

Resolves bug-report http://bugs.openfoam.org/view.php?id=2148

rather than being calculated on construction and stored as member data.

The convergence warning has be replaced with the 'convergence()' member
function which returns 'true' if the SVD iteration converged, otherwise 'false'.

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2152

Note: this reuses the existing storage rather than costly reallocation
which requires the initial allocation to be sufficient for the largest
size the ODE system might have.  Attempt to set a size larger than the
initial size is a fatal error.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2140

Patch contributed by Mattijs Janssens

Resolved additional bug-report http://bugs.openfoam.org/view.php?id=2137

Resolves bug-report http://bugs.openfoam.org/view.php?id=2137

normalVector -> normal
basePoint -> point

The old names are supported for backward-compatibility.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2128

Instead of ICCG use PCG with the DIC preconditioner
Instead of BICCG use PBiCG with the DILU preconditioner