[IronPython] delete key on MAC OS X

[HEMMI, Shigeru]

Sorry my confusion.

I finally found a tricky result. Any conrole key input,  "delete",
"contol+w" and others
not work properly in the intial IP interactive session.
Then stop ipy job using ^Z key and go back to IP interactive sessin
by fg command,  every controle key involving ^D works as I wish.

$ mono ipy.exe
IronPython 1.0.2401 on .NET 2.0.50727.42
Copyright (c) Microsoft Corporation. All rights reserved.
>>> ^Z
[1]+  Stopped                 mono ipy.exe

$ fg
mono ipy.exe

>>> ^D

$