Changeset 3307 for code/trunk/src/core/TclThreadList.h

Completely rewrote TclThreadManager. This fixes several bugs from the initial implementation. The main features work fine now, but some tasks are still open (for example destroying a thread or implementing a queue size limit).

I hope this doesn't cause any troubles because I used the TclThreadManager-version from netp6 as a draft for the reimplementation. I've also applied the c-style-cast-fixes from core.

I tested this with boost 1.37, I hope it also works with 1.35 (I haven't seen any remarkable changes in the log). However it won't work with boost 1.34.1 and lower, but this change already happened back in netp6, so please update your dependencies if you're still using an old version (the current release is 1.39 btw).