* harbour/include/hbstack.h
* harbour/source/vm/estack.c
* added pEnd to hb_stack structure to speed up hb_stackPush()
which is one of the most often used operation in HVM.
* harbour/include/hbapi.h
* small trick with HB_IS_* macros to give a compiler a chance to make
them faster on some machines
* harbour/source/compiler/genc.c
! fixed stripping non identifier characters from symbol table name
* harbour/source/compiler/hbpcode.c
* cleaned comment
* harbour/source/rdd/dbf1.c
* set Operation in error object to field name in field{put,get} methods.
+ added DBI_LOCKOFFSET
* harbour/source/vm/classes.c
* formatting
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
* some minor speed optimizations
29f11ab65c