Prepare devtools_server 0.1.2 (#623)

Author: DanTup

packages/devtools_server/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.1.2
+- The `launchDevTools` service will now return well-formed errors if it fails to
+  launch the browser for any reason.
+
 ## 0.1.1
 - When running on ChromeOS, the `launchDevTools` service will now launch the native
   ChromeOS browser (instead of the Linux version of Chrome installed in the Linux

packages/devtools_server/pubspec.yaml

@@ -1,7 +1,7 @@
 name: devtools_server
 description: A server that supports Dart DevTools.
 
-version: 0.1.1
+version: 0.1.2
 
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/flutter/devtools