* include/hbapi.h
* source/vm/maindllp.c
* source/vm/extend.c
* contrib/gtwvg/gtwvg.h
* contrib/gtwvg/wvgutils.c
* Changed hb_parv*() function return value to 'const char *'.
* include/hbapi.h
* source/vm/maindllp.c
* source/vm/extend.c
* contrib/gtwvg/gtwvg.h
* contrib/gtwvg/wvgutils.c
* Changed hb_parv*() function return value to 'const char *'.