Repository endpoint tags pagination (#3238)

* endpoint/api/repository: limit the number of tags returned

- Limit the number of tags returned by /api/v1/repository/<ns:repo> to 500.
- Uses the tag history endpoint instead, with an active tag filte.
- Update UI to use tag history endpoint instead.

static/js/pages/build-view.js

@@ -35,7 +35,8 @@
 
     var loadRepository = function() {
       var params = {
-        'repository': $scope.namespace + '/' + $scope.name
+        'repository': $scope.namespace + '/' + $scope.name,
+        'includeTags': false
       };
 
       $scope.repoResource = ApiService.getRepoAsResource(params).get(function(repo) {