Prepare release 0.0.15 (#545)

* Prepare release 0.0.15

Author: kenzieschmoll

packages/devtools/CHANGELOG.md

@@ -1,5 +1,8 @@
-## 0.0.15 - Date TBD
+## 0.0.15 - 2019-04-16
 * Warn users when they should be using a profile build of their application instead of a debug build.
+* Warn users using Microsoft browsers (IE and Edge) that they should be using Chrome to run DevTools.
+* Dark mode improvements.
+* Open scripts in the debugger using ctrl + o.
 
 ## 0.0.14 - 2019-03-26
 * Dark mode is ready to use, add ```&theme=dark``` at the end of the URI used to open the DevTool in Chrome. We look forward to your feedback.

packages/devtools/lib/devtools.dart

@@ -5,4 +5,4 @@
 /// The DevTools application version.
 // Note: when updating this, please update the corresponding version in the
 // pubspec.
-const String version = '0.0.15-dev.2';
+const String version = '0.0.15';

packages/devtools/pubspec.yaml

@@ -3,7 +3,7 @@ description: A suite of web-based performance tooling for Dart and Flutter.
 
 # Note: when updating this version, please update the corresponding entry in
 # lib/devtools.dart.
-version: 0.0.15-dev.2
+version: 0.0.15
 
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/flutter/devtools