* harbour/include/hbgtinfo.ch
* harbour/src/rtl/gtwvt/gtwvt.c
+ added support for HB_GTI_MAXIMIZED
Patch created by Heinz V. Bergen - thank you.
* harbour/src/common/hbstr.c
% simplified hb_strAt() code and added missing stop condition.
This modification also quite nicely optimized the average speed
of AT() function and $ operator.