Add the news about naming change of NSOutputStream (#56)

Author: mominul

_drafts/2016-07-28-issue-32.md

@@ -41,6 +41,8 @@ process.launchPath = "/usr/bin/echo"
 process.arguments = CommandLine.arguments
 {% endhighlight %}
 
+Also as a part of [SE-0086](https://github.com/apple/swift-evolution/blob/master/proposals/0086-drop-foundation-ns.md), `OutputStream` was [renamed](https://github.com/apple/swift/pull/3576) to `TextOutputStream` and `NSOutputStream` was [renamed](https://github.com/apple/swift/pull/3667) to `OutputStream`.
+
 Ayaka Nonaka [merged](https://github.com/apple/swift/pull/3745) changes to import Objective-C's `@compatibility_alias` compiler directive as a Swift `typealias`.
 
 [SE-0131](https://github.com/apple/swift-evolution/blob/master/proposals/0131-anyhashable.md) was [implemented](https://github.com/apple/swift/pull/3554) by Dmitri Gribenko. This adds a type-erased `AnyHashable` container to the standard library.