karaoke-frontend
http://karaokend.frontendlabs.io
sudo apt-get install libmysqlclient-dev
sudo apt-get install ruby1.9.1-dev
sudo apt-get install mysql-server
sudo gem install json
sudo gem install sinatra
sudo gem install mysql
sudo npm install
bower install
gulp watch
http://localhost:9494/index.html
y para restaurar el .json
gulp backup