Increase timeouts for some tests

They're randomly failing on VSTS. I assume the machine is just a bit
slow/overloaded. This is the most sequential 'async' code imaginable.
It's hard to believe it's racey.

src/Tests/Tests.MonoTorrent.Client/MonoTorrent.Client/UdpTrackerTests.cs

@@ -36,6 +36,7 @@
 using System.Threading.Tasks;
 
 using MonoTorrent.BEncoding;
+using MonoTorrent.Connections;
 using MonoTorrent.Connections.Tracker;
 using MonoTorrent.Connections.TrackerServer;
 using MonoTorrent.Messages.UdpTracker;
@@ -334,17 +335,19 @@ public async Task AnnounceTest_NoConnect ()
         [Test]
         public async Task AnnounceTest_NoConnect_ThenConnect ()
         {
-            trackerConnection.RetryDelay = TimeSpan.Zero;
+            Assert.AreEqual (listener.Status, ListenerStatus.Listening, "listener is listening");
+
+            trackerConnection.RetryDelay = TimeSpan.FromSeconds(0);
             listener.IgnoreConnects = true;
             var response = await tracker.AnnounceAsync (announceparams, CancellationToken.None).WithTimeout ();
-            Assert.AreEqual (TrackerState.Offline, tracker.Status);
-            Assert.AreEqual (TrackerState.Offline, response.State);
+            Assert.AreEqual (TrackerState.Offline, tracker.Status, "tracker status should be offline");
+            Assert.AreEqual (TrackerState.Offline, response.State, "response status shoudl be offline");
 
             trackerConnection.RetryDelay = TimeSpan.FromSeconds (5);
             listener.IgnoreConnects = false;
             response = await tracker.AnnounceAsync (announceparams, CancellationToken.None);
-            Assert.AreEqual (TrackerState.Ok, tracker.Status);
-            Assert.AreEqual (TrackerState.Ok, response.State);
+            Assert.AreEqual (TrackerState.Ok, tracker.Status, "tracker status should be ok");
+            Assert.AreEqual (TrackerState.Ok, response.State, "response status should be ok");
         }
 
         [Test]

src/Tests/Tests.MonoTorrent.Client/TaskExtensions.cs

@@ -41,7 +41,7 @@ namespace MonoTorrent
 {
     static class TaskExtensions
     {
-        static readonly TimeSpan Timeout = System.Diagnostics.Debugger.IsAttached ? TimeSpan.FromHours (1) : TimeSpan.FromSeconds (5);
+        static readonly TimeSpan Timeout = System.Diagnostics.Debugger.IsAttached ? TimeSpan.FromHours (1) : TimeSpan.FromSeconds (10);
 
         public static T TakeWithTimeout<T> (this BlockingCollection<T> collection, string message = null)
         {

src/Tests/Tests.MonoTorrent.Dht/MonoTorrent.Dht/TaskTests.cs

@@ -203,7 +203,7 @@ public async Task ReplaceNodeTest ()
             Node nodeToReplace = engine.RoutingTable.Buckets[0].Nodes[3];
 
             ReplaceNodeTask task = new ReplaceNodeTask (engine, engine.RoutingTable.Buckets[0], replacement);
-            await task.Execute ().WithTimeout (1000);
+            await task.Execute ().WithTimeout ();
             Assert.IsFalse (engine.RoutingTable.Buckets[0].Nodes.Contains (nodeToReplace), "#1");
             Assert.IsTrue (engine.RoutingTable.Buckets[0].Nodes.Contains (replacement), "#2");
         }