Fixed broken conventions. Wrote a integrationstests that performs an actual merge between two branches.

Octokit.Reactive/Clients/IObservableRepositoriesClient.cs

@@ -133,6 +133,14 @@ namespace Octokit.Reactive
         /// </remarks>
         IObservableRepositoryContentsClient Content { get; }
 
+        /// <summary>
+        /// Client for GitHub's Repository Merging API
+        /// </summary>
+        /// <remarks>
+        /// See the <a href="https://developer.github.com/v3/repos/merging/">Merging API documentation</a> for more details
+        ///</remarks>
+        IObservableMergingClient Merging { get; }
+
         /// <summary>
         /// Gets all the branches for the specified repository.
         /// </summary>