On swipe, buttons do not show in Ionic

Working within Ionic framework. I have a very simple app setup and cannot get the buttons to show on swipe:

//Swipable buttons don't work.
$scope.itemButtons = [
 {
     text: 'Edit',
     type: 'Button',
     onTap: function (item) {
         alert('Edit Item');
     }
 },
 {
     text: 'Share',
     type: 'Button',
     onTap: function (item) {
         alert('Share Item');
     }
 }
];

<ion-content>
    <ion-list>
        <ion-item ng-repeat="facility in facilities" item="item" can-swipe="true" option-buttons="itemButtons">
            {{facility.name}}
        </ion-item>
    </ion-list>
</ion-content>

You also have a small bug - you should set item="facility", not item="item". But more importantly, this syntax is not available in nightly-1.0.0-beta.1. The new syntax looks like this:

<ion-content>
  <ion-list>
    <ion-item ng-repeat="facility in facilities" item="facility" can-swipe="true">
      Facility {{ facility .id }}
      <ion-option-button class="button-assertive" ng-click="edit(facility)">
        Edit
      </ion-option-button>
      <ion-option-button class="button-calm" ng-click="share(facility)">
        Share
      </ion-option-button>
    </ion-item>
  </ion-list>
</ion-content>

js:

$scope.edit = function(item) {
  alert('Edit facility: ' + item.id);
};
$scope.share = function(item) {
  alert('Share facility: ' + item.id);
};

http://plnkr.co/edit/isubGyXN3FEy5hNIuUlR?p=preview

Adding can-swipe="true" option-buttons="itemButtons" to the parent element seemed to fix this for me in 1.0.0-beta.1

<ion-list can-swipe="true" option-buttons="itemButtons">
        <ion-item ng-repeat="facility in facilities" item="facility" ng-click="setFacilityId(facility.id)" href="#/app/facility">
            {{facility}}
        </ion-item>
</ion-list>