Update ObservableGitHubClient and ObservableRepositoriesClient to match

Octokit.Reactive/Clients/IObservableRepositoriesClient.cs

@@ -324,6 +324,14 @@ namespace Octokit.Reactive
         ///</remarks>
         IObservableRepositoryCommitsClient Commit { get; }
 
+        /// <summary>
+        /// Access GitHub's Releases API.
+        /// </summary>
+        /// <remarks>
+        /// Refer to the API docmentation for more information: https://developer.github.com/v3/repos/releases/
+        /// </remarks>
+        IObservableReleasesClient Release { get; }
+
         /// <summary>
         /// Client for managing pull requests.
         /// </summary>

Octokit.Reactive/Clients/ObservableRepositoriesClient.cs

@@ -37,6 +37,7 @@ namespace Octokit.Reactive
             Commits = new ObservableRepositoryCommitsClient(client);
 #pragma warning restore CS0618 // Type or member is obsolete
             Commit = new ObservableRepositoryCommitsClient(client);
+            Release = new ObservableReleasesClient(client);
             DeployKeys = new ObservableRepositoryDeployKeysClient(client);
             Content = new ObservableRepositoryContentsClient(client);
             Merging = new ObservableMergingClient(client);
@@ -469,6 +470,14 @@ namespace Octokit.Reactive
          ///</remarks>
          public IObservableRepositoryCommitsClient Commit { get; private set; }
  
+        /// <summary>
+        /// Access GitHub's Releases API.
+        /// </summary>
+        /// <remarks>
+        /// Refer to the API docmentation for more information: https://developer.github.com/v3/repos/releases/
+        /// </remarks>
+        public IObservableReleasesClient Release { get; private set; }
+
         /// <summary>
         /// Client for managing pull requests.
         /// </summary>

Octokit.Reactive/IObservableGitHubClient.cs

@@ -15,6 +15,7 @@ namespace Octokit.Reactive
         IObservablePullRequestsClient PullRequest { get; }
         IObservableRepositoriesClient Repository { get; }
         IObservableGistsClient Gist { get; }
+        [Obsolete("Use Repository.Release instead")]
         IObservableReleasesClient Release { get; }
         IObservableSshKeysClient SshKey { get; }
         IObservableUsersClient User { get; }

Octokit.Reactive/ObservableGitHubClient.cs

@@ -42,7 +42,6 @@ namespace Octokit.Reactive
             Repository = new ObservableRepositoriesClient(gitHubClient);
             SshKey = new ObservableSshKeysClient(gitHubClient);
             User = new ObservableUsersClient(gitHubClient);
-            Release = new ObservableReleasesClient(gitHubClient);
             Git = new ObservableGitDatabaseClient(gitHubClient);
             Gist = new ObservableGistsClient(gitHubClient);
             Search = new ObservableSearchClient(gitHubClient);