Update gitignore
Update gitignore

AndersonFirmino/coffeescript,jiangmiao/toffee-script,xixixao/coffee-script,jashkenas/coffeescript,jiangmiao/toffee-script,shreeve/coffeescript,jiangmiao/toffee-script,cosmicexplorer/coffeescript,mrmowgli/coffeescript,AndersonFirmino/coffeescript