add versions and constraints for packages and samples

- all packages at 0.9.0, except "analyzer" which had a version already
- dependencies at ">=0.9.0 <0.10.0" except analyzer is ">=0.10.0 <0.11.0"
- sdk constraint ">=1.0.0 <2.0.0"

R=sigmund@google.com

Review URL: https://codereview.chromium.org//59763006

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/watcher@29957 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/watcher/pubspec.yaml

diff --git a/pkgs/watcher/pubspec.yaml b/pkgs/watcher/pubspec.yaml
index 263832e..6b8faca 100644
--- a/pkgs/watcher/pubspec.yaml
+++ b/pkgs/watcher/pubspec.yaml
@@ -1,4 +1,5 @@
 name: watcher
+version: 0.9.0
 author: "Dart Team <misc@dartlang.org>"
 homepage: http://www.dartlang.org
 description: >
@@ -6,8 +7,10 @@
   of directories and notifies you when files have been added, removed, or
   modified.
 dependencies:
-  crypto: any
-  path: any
+  crypto: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <0.10.0"
 dev_dependencies:
-  scheduled_test: any
-  unittest: any
+  scheduled_test: ">=0.9.0 <0.10.0"
+  unittest: ">=0.9.0 <0.10.0"
+environment:
+  sdk: ">=1.0.0 <2.0.0"