- previous draft version was HashTbl
- accidentally still had canonicalSize in templated code

Conflicts:
	src/OpenFOAM/matrices/simpleMatrix/simpleMatrix.C
	src/OpenFOAM/matrices/simpleMatrix/simpleMatrix.H
	tutorials/incompressible/simpleFoam/airFoil2D/Allclean
	tutorials/multiphase/settlingFoam/ras/tank3D/Allclean

- don't let automatic resize into integer overflow
- avoid possible overflow in increment()

StaticHashTable - fix erase()/++ as per HashTbl

- might still be worth dropping it, but at least it'll be in better
  condition when it gets chucked!

- the end iterators and canonicalSize are independent of the templated
  parameters, so move them to HashTblCore

- this avoid allocating separate end iterator at all.

  end(), cend() return a iteratorEnd.
  iterator == iteratorEnd just checks for non-NULL pointer on iterator.
  The compiler should optimize most of it away.