- added constructor dictionary(const dictionary*) that also handles NULL
  pointers and makes it convenient to construct from a possibly nonexistent
  sub-dictionary:
  eg,
      dictionary dict2(dict1.subDictPtr("someDict"));

- make some of the turbulence Coeffs sub-dictionary optional.
  Their contents are all 'lookupOrAddDefault' anyhow.

- in turbulentMixingLength BCs, skip namespace qualifier in template
  (eg, <RASModel> vs. <compressible::RASModel>)

- change comments from 'turbulenceProperties' to RASProperties/LESProperties

- consistency between compressible/incompressible - no separate file for
  'New' selector etc

- consistency in accessing the model coefficients.
  Use method coeffDict() for const access.
  Use protected data member coeffDict_ for read/write access.

- document model coefficients in etc/constant/RASProperties.
  Need the same for LESProperties before we can prune these from the
  tutorials.

- actually blend correction factors as well in fixedBlended scheme

- consistency change: move 'linearUpwindV' into same directory as
  'linearUpwind', move correction code from .H into .C code.

- minor docu format/spelling changes

A more general question:
~~~~~~~~~~~~~~~~~~~~~~~~
- would it make more sense to use template specializations for the
  '*V' differencing schemes?

- place wmkdep and dirToString executables under
  utilbin/$(WM_ARCH)$(WM_COMPILER).
  This helps somewhat when copying rules about, and might help when creating
  general rules.

Conflicts:
	applications/utilities/mesh/manipulation/createBaffles/createBaffles.C

Can't use [0] to assign the first value of a DynamicList unless it has been
preceded by a setSize() - use append() instead.

Renamed the LES wall-function back to how it was because it is more generally applicable than just to the Spalart Allmaras model.

- #inputMode error
  now issues a FatalError on duplicate entries

- #inputMode warn
  issues a warning on duplicate entries, corresponds to the
  old behaviour of 'error'

- #inputMode protect
  prevents overwriting existing entries

The 'protect' mode provides a simple mechanism for supplying default values.
eg,
    in file1:
        #inputMode  protect
        intensity       0.1;
        mixingLength    0.005;
        #inputMode  merge

        inlet
        {
            type        turbulentIntensityKineticEnergyInlet;
            intensity   $intensity;
        }

    which is included from file2:

        intensity   0.05;
        #include    "file1"

- fixed misc. copyright dates, other cosmetics

- emit warning for deprecated timeScheme entry

- added rules for gcc-4.3 in preparation for switching to gcc-4.4

- added 'clean' target for wmake/src/Makefile
  It is probably reasonable to separate the binaries from the rules (TODO)

	modified:   SiCortex64Gcc/cOpt
	modified:   SunOS64Gcc/cOpt
	modified:   linux64Gcc/c++Opt
	modified:   linux64Gcc/cOpt
	modified:   linux64Gcc/general
	modified:   linux64Gcc42/c++Opt
	modified:   linux64Gcc42/cOpt
	modified:   linuxGcc/c++
	modified:   linuxGcc/cDebug
	modified:   linuxGcc/general
	modified:   linuxIA64Gcc/cOpt

- createBaffles used List::append(const T&), changed to DynamicList

- DynamicList gets append methods as per List
- misc cosmetic changes