add google analytics gem and update Gemfile.lock
add Google Tracker ID
add template for google analytics
modify .travis.yml not to precompile on travis ci
Merge pull request #124 from i-d-e-a-t/add-google-analytics-settings

Google Analyticsを導入する
fix rake db:seed bug
Merge branch 'refresh-summer-sonic-2014-artists'
add ruby version to remove travis warning
Merge pull request #129 from i-d-e-a-t/add-ruby-version-to-Gemfile

GemfileにRubyのバージョンを追加する
Merge branch 'master' into study-as-chain