V4.8.0 (#2102)

* Fixed missing item in File menu on Win / Lin. (#2100)

* Fixed missing item in File menu on Win / Lin.

* Fixed changelog entry PR #

* Bump version to 4.8.0 (#2101)

Signed-off-by: Srinaath Ravichandran <srravich@microsoft.com>

Co-authored-by: Srinaath Ravichandran <srravich@microsoft.com>

Co-authored-by: Tony Anziano <toanzian@microsoft.com>
Co-authored-by: Srinaath Ravichandran <srravich@microsoft.com>

CHANGELOG.md

@@ -4,8 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
-
+## v4.8.0 - 2019 - 03 - 12
 ## Added
 - [client/main] Added Ngrok Status Viewer in PR [2032](https://github.com/microsoft/BotFramework-Emulator/pull/2032)
 - [client/main] Changed conversation infrastructure to use Web Sockets to communicate with Web Chat in PR [2034](https://github.com/microsoft/BotFramework-Emulator/pull/2034)
@@ -29,6 +28,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [client] Fixed an issue that was causing adaptive card focus to be blurred when clicking on an activity in PR [2090](https://github.com/microsoft/BotFramework-Emulator/pull/2090)
 - [client] Fixed an accessibility issue with the recent bots list remove button in PR [2091](https://github.com/microsoft/BotFramework-Emulator/pull/2091)
 - [client] Copy secret key button now copies the secret key to the clipboar when creating a new bot file in PR [2098](https://github.com/microsoft/BotFramework-Emulator/pull/2098)
+- [client] Fixed an issue on Windows & Linux where the "Close tab" item was missing in the File menu in PR [2100](https://github.com/microsoft/BotFramework-Emulator/pull/2100)
 
 ## Removed
 - [client/main] Removed legacy payments code in PR [2058](https://github.com/microsoft/BotFramework-Emulator/pull/2058)