Add a build display name, set it from the etag reported by s3 for file uploads.

static/js/controllers.js

@@ -668,11 +668,6 @@ function RepoBuildCtrl($scope, Restangular, ApiService, $routeParams, $rootScope
     $('.build-logs').height($(window).height() - 365);
   };
 
-  $scope.getShortId = function(id) {
-    var lastIndex = id.lastIndexOf('-');
-    return id.substr(lastIndex + 1);
-  };
-
   $scope.getCommandKind = function(fullTitle) {
     var colon = fullTitle.indexOf(':');
     var title = getTitleWithoutStep(fullTitle);

static/partials/repo-build.html

@@ -19,7 +19,7 @@
         <li ng-class="currentBuild == build ? 'active' : ''" ng-repeat="build in builds">
           <a class="build-tab-link" href="javascript:void(0)" ng-click="setCurrentBuild(build.id, true)">
             <span class="phase-icon" ng-class="build.phase"></span>
-            <span>{{ getShortId(build.id) }}</span>
+            <span>{{ build.display_name }}</span>
           </a>
         </li>
       </ul>