Merge pull request #496 from collinjackson/symlink

Use the new virtual directory flag for sky_server instead of a symlink to prevent infinite subdirectory recursion

packages/flutter/pubspec.yaml

@@ -11,7 +11,7 @@ dependencies:
   newton: ^0.1.2
   sky_engine: ^0.0.6
   sky_services: ^0.0.6
-  sky_tools: ^0.0.6
+  sky_tools: ^0.0.7
   vector_math: ^1.4.3
 environment:
   sdk: '>=1.8.0 <2.0.0'