message: Remove isValid property in favor of pageIsValid computed from page-manager
diff: @@ -20,13 +20,13 @@ export default class PageLinkComponenet extends Component {
  return getPageParam(this.pageIndex, this.pageManager.pageHeadingText);
  }
  - @computed('pageManager.{isVisited,isValid}', 'pageIndex', 'currentPage', 'pageIsActive')
  + @computed('pageManager.{isVisited,pageIsValid}', 'pageIndex', 'currentPage', 'pageIsActive')
  get pageIcon() {
  if (this.pageIsActive) {
  return 'circle-o';
  }
  if (this.pageManager.isVisited) {
  - if (this.pageManager.isValid) {
  + if (this.pageManager.pageIsValid) {
  return 'check-circle-o';
  }
  return 'exclamation-circle';
  @@ -34,13 +34,13 @@ export default class PageLinkComponenet extends Component {
  return 'circle';
  }
  - @computed('pageManager.{isVisited,isValid}', 'pageIndex', 'currentPage', 'pageIsActive')
  + @computed('pageManager.{isVisited,pageIsValid}', 'pageIndex', 'currentPage', 'pageIsActive')
  get pageClass() {
  if (this.pageIsActive) {
  return 'Active';
  }
  if (this.pageManager.isVisited) {
  - if (this.pageManager.isValid) {
  + if (this.pageManager.pageIsValid) {
  return 'Valid';
  }
  return 'Invalid';
  