Prepare to publish 0.9.7+12 (dart-lang/watcher#72)

pkgs/watcher/CHANGELOG.md

diff --git a/pkgs/watcher/CHANGELOG.md b/pkgs/watcher/CHANGELOG.md
index 251c13e..44fbda5 100644
--- a/pkgs/watcher/CHANGELOG.md
+++ b/pkgs/watcher/CHANGELOG.md
@@ -1,6 +1,7 @@
 # 0.9.7+12
 
 * Catch `FileSystemException` during `existsSync()` on Windows.
+* Internal cleanup.
 
 # 0.9.7+11
 

pkgs/watcher/pubspec.yaml

diff --git a/pkgs/watcher/pubspec.yaml b/pkgs/watcher/pubspec.yaml
index 3722c84..f999c2a 100644
--- a/pkgs/watcher/pubspec.yaml
+++ b/pkgs/watcher/pubspec.yaml
@@ -1,5 +1,5 @@
 name: watcher
-version: 0.9.8-dev
+version: 0.9.7+12
 
 description: >-
   A file system watcher. It monitors changes to contents of directories and