Merge pull request #16 from scopatz/onlysetup

added only-setup option for setting up servers
Merge pull request #17 from polyphemus-ci/swc

Swc
Merge branch 'swc' of https://github.com/polyphemus-ci/polyphemus into swc
Merge branch 'swc' of github.com:polyphemus-ci/polyphemus into swc