update travis config
update travis config

jerel/ember-inflector,grapho/ember-inflector,grapho/ember-inflector,greyhwndz/ember-inflector,fivetanley/ember-inflector,stefanpenner/ember-inflector,jerel/ember-inflector,stefanpenner/ember-inflector,Eric-Guo/ember-inflector,fivetanley/ember-inflector,greyhwndz/ember-inflector,Eric-Guo/ember-inflector