Fixed threadpool hang and added lots of smoketests.
* Fixed bug in threadpool logic when calling CleanupAnyWorkersSharingAllocator - this was deleting the worker's thread death notifier in the context of a worker thread (which is only allowed from the context of the main thread).
* Added lots more smoketests
* Added --overwrite option to fzip (previously unzipping would always overwrite)
SPCRE
Currently, it is mostly a direct port of Google's C++ wrapper
around PCRE for Symbian so there is still quite a bit lacking.
* Add Locale support
* Support more PCRE options in TRegExArg
* Refactor to use more templates and less macros in TRegExArg.
* Full UCS2 support and not just UTF8. Unfortunately, this may slow things down
as PCRE doesn't support this natively so some wastefull conversion will have
to take place.
* Port unit tests over to TEF. Will get rid of lots of code duplication.
* Include CRadix parsing