Clean up 1.12 deprecations
Clean up 1.12 deprecations

martndemus/website,elwayman02/website,kkenan/website,zeppelin/emberjs-website,EricSchank/website,wifelette/website,cyberkoi/website,MinxianLi/ember,koriroys/emberjs-website,elidupuis/website,cllns/emberjs-website,ktornwall/website,shearwater-intl/website,quangv/website,workmanw/ember-website,tmock12/website,zeppelin/emberjs-website,raycohen/website,bmac/website,tmock12/website,martndemus/website,ktornwall/website,elwayman02/website,kkenan/website,zeppelin/emberjs-website,EricSchank/website,datajohnny/website,EricSchank/website,Eric-Guo/website,duggiefresh/website,tmock12/website,mrjavascript/website,datajohnny/website,wifelette/website,AaronSikes/website,MinxianLi/ember,AaronSikes/website,elidupuis/website,quangv/website,mrjavascript/website,martndemus/website,Eric-Guo/website,kkenan/website,cyberkoi/website,maxcal/website,AgilionApps/website,kpfefferle/website,kpfefferle/website,workmanw/ember-website,elwayman02/website,davidpett/website,koriroys/emberjs-website,datajohnny/website,kpfefferle/website,josemarluedke/ember-website,josemarluedke/ember-website,Eric-Guo/website,elidupuis/website,ktornwall/website,greyhwndz/website,raycohen/website,SaladFork/emberjs-website,balupton/ember-website,AgilionApps/website,AgilionApps/website,shearwater-intl/website,workmanw/ember-website,cllns/emberjs-website,bmac/website,bmac/website,workmanw/ember-website,duggiefresh/website,quangv/website,MinxianLi/ember,cyberkoi/website,greyhwndz/website,raycohen/website,SaladFork/emberjs-website,davidpett/website,SaladFork/emberjs-website,AaronSikes/website,josemarluedke/ember-website,mrjavascript/website,balupton/ember-website,bmac/website,josemarluedke/ember-website,wifelette/website,koriroys/emberjs-website,greyhwndz/website,shearwater-intl/website,davidpett/website,maxcal/website,zeppelin/emberjs-website,cllns/emberjs-website,duggiefresh/website,maxcal/website,SaladFork/emberjs-website,balupton/ember-website