Merge pull request #1798 from mattray/api_updates

Minor update to API documentation to Include nodes and pods

docs/swagger.json

@@ -69,7 +69,7 @@
           {
           "name": "aggregate",
           "in": "query",
-          "description": "Field by which to aggregate the results. Accepts: `cluster`, `namespace`, `controllerKind`, `controller`, `service`, `label:<name>`, and `annotation:<name>`. Also accepts comma-separated lists for multi-aggregation, like `namespace,label:app`.",
+          "description": "Field by which to aggregate the results. Accepts: `cluster`, `node`, `namespace`, `controllerKind`, `controller`, `service`, `pod`, `container`, `label:<name>`, and `annotation:<name>`. Also accepts comma-separated lists for multi-aggregation, like `namespace,label:app`.",
           "required": false,
           "style": "form",
           "explode": true,