Bring in the latest pub.

CHANGELOG.md

Index: CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6a823e88974c18c88b934050749f23bc3dc1ef2..56a6db81b75c09f10d2e039d43cc02ddcf04a206 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,26 @@
     `setInnerHtml` or other methods that create DOM from text. It is
     also more efficient, skipping the creation of a `DocumentFragment`.
 
+### Tool changes
+
+* Pub
+
+  * Pub will now generate a ".packages" file in addition to the "packages"
+    directory when running `pub get` or similar operations, per the
+    [package spec proposal][]. Pub now has a `--no-package-symlinks` flag that
+    will stop "packages" directories from being generated at all.
+
+  * When `pub publish` finds a violation, it will emit a non-zero exit code.
+
+[package spec proposal]: https://github.com/lrhn/dep-pkgspec
+
+## 1.11.1
+
+### Tool changes
+
+* Pub will always load Dart SDK assets from the SDK whose `pub` executable was
+  run, even if a `DART_SDK` environment variable is set.
+
 ## 1.11.0 - 2015-06-25
 
 ### Core library changes