update supertest dev dep
Accept number as value of Signed Cookie
Merge branch 'master' of github.com:visionmedia/express
Merge pull request #1589 from hacksparrow/master

Signed cookies can now accept numbers as values, like unsigned cookies
Merge branch 'master' of github.com:visionmedia/express
update qs and remove all ~ semver crap
Merge pull request #1 from visionmedia/master

上游合并