Update pubspec for 0.1.2

CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb52ba8..3dad00c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.1.2
+
+- Parameters have contexts associated with them
+
 ## 0.1.1
 
 - When updating parameters, the set of updates is returned

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index 7146dd1..5f42495 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: cassowary
-version: 0.1.1
+version: 0.1.2
 description: Cassowary Constraint Solving Toolkit
 author: Chromium Authors <sky-dev@googlegroups.com>
 homepage: https://github.com/domokit/cassowary