Code cleanup part #1: move all the services and directive JS code in the app.js file into its own files

static/js/directives/ui/delete-ui.js

@@ -0,0 +1,26 @@
+/**
+ * A two-step delete button that slides into view when clicked.
+ */
+angular.module('quay').directive('deleteUi', function () {
+  var directiveDefinitionObject = {
+    priority: 0,
+    templateUrl: '/static/directives/delete-ui.html',
+    replace: false,
+    transclude: true,
+    restrict: 'C',
+    scope: {
+      'deleteTitle': '=deleteTitle',
+      'buttonTitle': '=buttonTitle',
+      'performDelete': '&performDelete'
+    },
+    controller: function($scope, $element) {
+      $scope.buttonTitleInternal = $scope.buttonTitle || 'Delete';
+
+      $element.children().attr('tabindex', 0);
+      $scope.focus = function() {
+        $element[0].firstChild.focus();
+      };
+    }
+  };
+  return  directiveDefinitionObject;
+});