Update to latest versions of API declarations

etc/api/gamesconfiguration/v1configuration/gamesconfiguration-api.json

@@ -1,12 +1,12 @@
 {
  "kind": "discovery#restDescription",
- "etag": "\"YWOzh2SDasdU84ArJnpYek-OMdg/3ak9sapH7H4IuKpkj-CidpvNYC0\"",
+ "etag": "\"J3WqvAcMk4eQjJXvfSI4Yr8VouA/a9BYOioKgOJC6GCuPMb6gARScAM\"",
  "discoveryVersion": "v1",
  "id": "gamesConfiguration:v1configuration",
  "name": "gamesConfiguration",
  "canonicalName": "Games Configuration",
  "version": "v1configuration",
- "revision": "20171207",
+ "revision": "20181004",
  "title": "Google Play Game Services Publishing API",
  "description": "The Publishing API for Google Play Game Services.",
  "ownerDomain": "google.com",
@@ -58,12 +58,12 @@
   },
   "quotaUser": {
    "type": "string",
-   "description": "Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters. Overrides userIp if both are provided.",
+   "description": "An opaque string that represents a user for quota purposes. Must not exceed 40 characters.",
    "location": "query"
   },
   "userIp": {
    "type": "string",
-   "description": "IP address of the site where the request originates. Use this if you want to enforce per-user limits.",
+   "description": "Deprecated. Please use quotaUser instead.",
    "location": "query"
   }
  },