updating ember-data dependency to 1.0.0-beta18
updating ember-data dependency to 1.0.0-beta18

sebweaver/ember-localforage-adapter,igorrKurr/ember-localforage-adapter,tchak/ember-offline-adapter,Flexberry/ember-localforage-adapter,igorrKurr/ember-localforage-adapter,sebweaver/ember-localforage-adapter,Flexberry/ember-localforage-adapter,tchak/ember-offline-adapter