Tidied iocli exports, build macro tweaks.
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.
fixed builds on platforms that don't support btrace or any form of tracing.
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