/public/assets/coffee/App - source project coffeescript files
/public/javascripts/App - compiled project files
/public/javascripts/libs/ - dev libraries
/public/test/App - project specs in coffeescript (no need to compile because of karma preprocessor)
/public/test/libs - libraries for unit testing
/public/test/karma.conf.js - Karma config file
to start development use "grunt test" command