update pubspecs for pkg uploading
update pubspecs for pkg uploading

R=sigmund@google.com

Review URL: https://codereview.chromium.org//112283002

git-svn-id: ba870c207403ed87e84e4e2f3f91276ef01d69f6@31053 260f80e4-7a28-3924-810f-c04153c831b5

dart-lang/csslib,yjbanov/csslib,serates/csslib,dart-lang/csslib,yjbanov/csslib,serates/csslib