Fixed a defect in iosrv.exe that caused a panic if a foreground read object was attached to a different end point. This was due to the read object being notified of a change in foreground before its iEndPoint member was updated. This member is now updated before attempting the attach, and is set to NULL in the event of a leave (resulting in the read object being left in an unattached state). Also tweaked ymodem.cif to make it more readable.

EXPORTS
	??0RExtraBtrace@@QAE@XZ @ 1 NONAME ; RExtraBtrace::RExtraBtrace(void)
	?Handle@RExtraBtrace@@QBEHXZ @ 2 NONAME ; int RExtraBtrace::Handle(void) const
	?EnableProfiling@RExtraBtrace@@QAEHH@Z @ 3 NONAME ; int RExtraBtrace::EnableProfiling(int)
	?Connect@RExtraBtrace@@QAEHXZ @ 4 NONAME ; int RExtraBtrace::Connect(void)
	?Close@RExtraBtrace@@QAEXXZ @ 5 NONAME ; void RExtraBtrace::Close(void)