Prepare to publish (#41)

Add a changelog entry for the `names` field change, drop `-dev`.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73bbed0..321c371 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
-## 0.10.9-dev
+## 0.10.9
 
 * Fix a number of document comment issues.
+* Allow parsing source map files with a missing `names` field.
 
 ## 0.10.8
 
diff --git a/pubspec.yaml b/pubspec.yaml
index f2db1eb..871c40a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: source_maps
-version: 0.10.9-dev
+version: 0.10.9
 
 description: Library to programmatically manipulate source map files.
 homepage: https://github.com/dart-lang/source_maps