- having all utilities available ASAP is more important than having
  all solvers immediately

Useful for in parallel if it cannot find processor*/constant/polyMesh/points
and decides to read undecomposed constant/polyMesh/points...

- removed globalPointPatch*
- removed pointPatchInterpolate*
since all is now inside volPointInterpolation.

- use .obj files for debugging purposes instead.

- operator[] with label -> get args at index
- operator[] with word  -> get named option

- also update links from opencfd.co.uk -> openfoam.com

- deprecate argList::additionalArgs() method and remove uses of it

- also provide size() method, which returns the number of arguments

- make centrally available via #include "addOverwriteOption.H"

- Removes need for additional call to info in the main solver code