* harbour/src/rdd/sdf1.c
! fixed bug in SDF import procedure - many thanks
to Enrico Maria Giordano for reporting the problem
and to Vicente Guerra for locating the reason
BTW fix committed to xHarbour may work but it's not correct,
I suggest to update it.
* harbour/src/rtl/hbdyn.c
* harbour/src/rtl/hbsocket.c
* harbour/src/rdd/dbfnsx/dbfnsx1.c
* harbour/src/rdd/dbfcdx/dbfcdx1.c
* harbour/src/rdd/dbffpt/dbffpt1.c
* harbour/contrib/hbct/bitnum.c
* harbour/contrib/hbwin/olecore.c
* pacified some of MSVC6 warnings reported by Andi
* harbour/utils/Makefile
* added internal/developers build switch