fix(package): update broccoli-file-creator to version 2.1.1 (#1590)
fix(package): update broccoli-file-creator to version 2.1.1 (#1590)

* fix(package): update broccoli-file-creator to version 2.1.1

Closes #1589

* make version range more permissive

stevenwu/ember-simple-auth,simplabs/ember-simple-auth,stevenwu/ember-simple-auth,simplabs/ember-simple-auth