First cut of thread pools in fshell. Not fully working yet. Removed 4 overloads of CCommandBase::RunCommand[L] that are no longer used at all, and changed one more to not be exported as it's only used internally to iocli.dll. Added a thread pool (CThreadPool) to fshell so that thread commands no longer have to spawn a new thread every time they run. As part of this, CCommandWrapperBase now derives from CActive so that CThreadCommand can use its CActive-ness. CThreadCommand rejigged quite a bit to use CThreadPool (via MTaskRunner interface).

THE MAIN PCRE LIBRARY
---------------------

Written by:       Philip Hazel
Email local part: ph10
Email domain:     cam.ac.uk

University of Cambridge Computing Service,
Cambridge, England.

Copyright (c) 1997-2008 University of Cambridge
All rights reserved


THE C++ WRAPPER LIBRARY
-----------------------

Written by:       Google Inc.

Copyright (c) 2007-2008 Google Inc
All rights reserved

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