Update version prior to publishing

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index 55a6b43..886bd86 100755
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: plugin
-version: 0.0.1
+version: 0.1.0
 author: Dart Team <misc@dartlang.org>
 description: Support for building plugins.
 homepage: https://github.com/dart-lang/plugin