Move a number of packages and some of pub over to using source_span.

R=efortuna@google.com, rnystrom@google.com, sigmund@google.com
BUG=19930

Review URL: https://codereview.chromium.org//401753002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/http_parser@38526 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 328e779..72f0218 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.0.2+4
+
+* Widen the `string_scanner` version constraint.
+
 ## 0.0.2+3
 
 * Fix a library name conflict.
diff --git a/pubspec.yaml b/pubspec.yaml
index af1a192..fd279ce 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: http_parser
-version: 0.0.2+3
+version: 0.0.2+4
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
@@ -7,7 +7,7 @@
 dependencies:
   crypto: ">=0.9.0 <0.10.0"
   collection: ">=0.9.1 <0.10.0"
-  string_scanner: ">=0.0.0 <0.1.0"
+  string_scanner: ">=0.0.0 <0.2.0"
 dev_dependencies:
   unittest: ">=0.10.0 <0.11.0"
 environment: