Fix typo and change travis config and ruby version

.travis.yml

@@ -1,6 +1,7 @@
+sudo: false
 language: ruby
 rvm:
-  - 2.1.0
+  - 2.2.0
 
 before_script:
   - "RAILS_ENV=test bundle exec rake db:create"
@@ -13,6 +14,6 @@ notifications:
 
   email:
     recipients:
-      - tab@zeus.ugent.be
+      - tap@zeus.ugent.be
     on_success: never
     on_failure: change

spec/models/order_spec.rb

@@ -41,7 +41,7 @@ describe Order do
     end
 
     it 'should cancel the orderitems' do
-      expect(@order.order_items.frst).to receive(:cancel)
+      expect(@order.order_items.first).to receive(:cancel)
       @order.cancel
     end
   end