* contrib/hbnetio/netiosrv.c
* minor optimization
* src/rdd/dbcmd.c
* src/rdd/wacore.c
* src/rdd/wafunc.c
! added protection against exceeding the limit of workarea numbers.
Current maximum is 65534, WA 65535 is reserved for internal RDD
WA destructor.
! fixed possible memory leak in hb_rddInsertAreaNode()
* src/vm/set.c
! fixed typo in device detection code
+ added NUL to list of known device names in DOS, OS2 and MS-Win builds
+ recognize \\<server>\<device>, \\.\PIPE\*, \\.\<device> as
device names in DOS, OS2 and MS-Win builds.