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.

EXPORTS
	_ZN12RExtraBtrace15EnableProfilingEi @ 1 NONAME
	_ZN12RExtraBtrace5CloseEv @ 2 NONAME
	_ZN12RExtraBtrace7ConnectEv @ 3 NONAME
	_ZN12RExtraBtraceC1Ev @ 4 NONAME
	_ZN12RExtraBtraceC2Ev @ 5 NONAME
	_ZNK12RExtraBtrace6HandleEv @ 6 NONAME