add simplecov gem. #259
add rvm-capistrano and capify it
add deploy. close #247
Merge pull request #261 from saberma/saberma-enhancement/259-add-simplecov-gem

加入 simplecov gem.
Merge pull request #263 from saberma/saberma-enhancement/247-use-capistrano-to-deploy

加入部署配置文件
add platforms option with unicorn gem, because unicorn can't install in windows