add versions and constraints for packages and samples

pkg/analyzer/pubspec.yaml

Index: pkg/analyzer/pubspec.yaml
diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index ae88fb2c2536a6435da6a2df3a7b9d3abe28a882..4bbbece3601e93cb7b18389f64af0649db336de2 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -1,11 +1,13 @@
 name: analyzer
-version: 0.10.0
+version: 0.10.1
 author: Dart Team <misc@dartlang.org>
 description: Static analyzer for Dart.
 homepage: http://www.dartlang.org
 dependencies:
-  args: ">=0.8.9 <1.0.0"
-  logging: ">=0.8.9 <1.0.0"
-  path: ">=0.8.9 <1.0.0"
+  args: ">=0.9.0 <0.10.0"
+  logging: ">=0.9.0 <0.10.0"
+  path: ">=0.9.0 <0.10.0"
 dev_dependencies:
-  unittest: ">=0.8.9 <1.0.0"
+  unittest: ">=0.9.0 <0.10.0"
+environment:
+  sdk: ">=1.0.0 <2.0.0"