Add authors and homepages to packages. Review URL: https://codereview.chromium.org//11418267
Add authors and homepages to packages.
Review URL: https://codereview.chromium.org//11418267

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@15601 260f80e4-7a28-3924-810f-c04153c831b5

dart-lang/oauth2,ErikGrimes/oauth2,thosakwe/oauth2