CSL: further work towards a conservative collector - specifically fleshing out
Further correction to mess-up in previous checkin.
Fix some glitches left by the previous commit.
CSL: I have cleaned up some of the autoconf etc stuff so that reautoconf
Small improvement in table size, Small improvements in the code.
CSL: A week or so back I checked in asome changes that were intended to
CSL: In recent times a build of CSL on Windows has REQUIRED that a 32-bit
CSL: Put back some code to try to make the C++ threads terminate at end