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.
// SkeletonTemplateUid.h
//
// [[COPYRIGHT]]
//
#ifndef _SKELETONTEMPLATEUID_H
#define _SKELETONTEMPLATEUID_H
#define KSkeletonTemplateUid [[UID]]
#endif //_SKELETONTEMPLATEUID_H