More build fixes.
Changed the documentation builder to automatically prepend %EPOCROOT% (converted to a path relative form) to pre-processor include path options that start with 'epoc32'. Prevously $(EPOCROOT) was prepended in the makefile, which broke the documentation build because the pre-processor will only accecpt relative path include options.
// btincomingserial.iby
//
// Copyright (c) 2010 Accenture. All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Accenture - Initial contribution
//
#ifndef __BTINCOMINGSERIAL_IBY__
#define __BTINCOMINGSERIAL_IBY__
#include <fsh_config.iby>
#include <vt100.iby>
#ifdef FSHELL_COMMS_SUPPORT
FSHELL_EXECUTABLE_FILE(btincomingserial.dll)
#endif
#endif //__BTINCOMINGSERIAL_IBY__