I'm very happy to see this dropping. Specifically the rewrite of ngAnimate and changing to saner (IMO) class conventions `.foo.ng-enter` and `.foo.ng-enter-acti

I'm very happy to see this dropping. Specifically the rewrite of ngAnimate and changing to saner (IMO) class conventions `.foo.ng-enter` and `.foo.ng-enter-active` instead of the previous use of `.foo-enter-setup` and `.foo-enter-start`.