Update dart:collection to version 1.0.0

R=sgjesse@google.com

Review URL: https://codereview.chromium.org//463333004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/http_parser@39484 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/pubspec.yaml b/pubspec.yaml
index fd279ce..340c08d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,12 +1,12 @@
 name: http_parser
-version: 0.0.2+4
+version: 0.0.2+5
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
   A platform-independent package for parsing and serializing HTTP formats.
 dependencies:
   crypto: ">=0.9.0 <0.10.0"
-  collection: ">=0.9.1 <0.10.0"
+  collection: ">=0.9.1 <2.0.0"
   string_scanner: ">=0.0.0 <0.2.0"
 dev_dependencies:
   unittest: ">=0.10.0 <0.11.0"