Update eslint config to work with modules using new eslint 2.x
Update eslint config to work with modules using new eslint 2.x

zbraniecki/l20n.js,zbraniecki/fluent.js,projectfluent/fluent.js,l20n/l20n.js,projectfluent/fluent.js,projectfluent/fluent.js,zbraniecki/fluent.js,stasm/l20n.js