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
	pcre_callout @ 1 NONAME
	pcre_compile @ 2 NONAME
	pcre_compile2 @ 3 NONAME
	pcre_config @ 4 NONAME
	pcre_exec @ 5 NONAME
	pcre_free @ 6 NONAME
	pcre_fullinfo @ 7 NONAME
	pcre_info @ 8 NONAME
	pcre_malloc @ 9 NONAME
	pcre_stack_free @ 10 NONAME
	pcre_stack_malloc @ 11 NONAME
	pcre_study @ 12 NONAME