Re-land r29957 (add versions and constraints for packages and samples), with
SDK constraints bumped from 1.0.0 to 0.8.10+6 .

R=ricow@google.com, sigmund@google.com

Review URL: https://codereview.chromium.org//62473002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/stack_trace@29986 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/stack_trace/pubspec.yaml

diff --git a/pkgs/stack_trace/pubspec.yaml b/pkgs/stack_trace/pubspec.yaml
index b672df7..63a1bf9 100644
--- a/pkgs/stack_trace/pubspec.yaml
+++ b/pkgs/stack_trace/pubspec.yaml
@@ -1,11 +1,14 @@
 name: stack_trace
+version: 0.9.0
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
   A package for manipulating stack traces and printing them readably.
 
 dependencies:
-  path: any
+  path: ">=0.9.0 <0.10.0"
 
 dev_dependencies:
-  unittest: any
+  unittest: ">=0.9.0 <0.10.0"
+environment:
+  sdk: ">=0.8.10+6 <2.0.0"