Prepare for 0.1.1 release. (#7)

* Prepare for 0.1.1 release.

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index 1375c6e..409870f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: browser_launcher
-description: A package that provides a standardized way to launch web browsers.
+description: Provides a standardized way to launch web browsers for testing and tools.
 
-version: 0.1.1-dev
+version: 0.1.1
 
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/browser_launcher