* harbour/common.mak
* harbour/source/lang/Makefile
+ harbour/source/lang/msgnl.c
+ added Dutch language module by Rene Koot
* harbour/config/os2/gcc.cf
* commented out -DTCPV40HDRS in CFLAGS
* harbour/make_gnu.cmd
* added commented by default: set C_USR=-DTCPV40HDRS %C_USR%
* harbour/contrib/libnf/menu1.prg
* harbour/contrib/libnf/pegs.prg
* harbour/contrib/libnf/popadder.prg
* harbour/contrib/libnf/savesets.prg
* harbour/source/debug/dbgmenu.prg
+ added missing #include "common.ch" for HB_SYMBOL_UNUSED()
* harbour/include/hbclass.ch
* renamed __HB_SYMBOL_UNUSED() to __HB_CLS_SYMBOL_UNUSED() to keep
the same name convention as for other hbclass definitions/commands
* harbour/include/hbsetup.h
* added commented by default #define HB_PP_MULTILINE_STRING
with small description
* harbour/source/rtl/net.c
* added missing #include(s) for OS2 build
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* formatting
