[STOBJECT]

[STOBJECT]
Followup to r67830: When no one handles a message, properly return that it was not handled.
This way all messages are handled correctly and not just NCCREATE.
Also took the chance to short-cut NCDESTROY, since the icon handlers have no need to receive this message.
CORE-9592 #resolve

svn path=/trunk/; revision=67831