enabled delete, updated ignore list

.gitignore

@@ -8,3 +8,5 @@
 /test/packages
 /test/bin/x64/Debug
 /test/obj/x64/Debug
+*.suo
+*.user

test/EndToEndOnlineTrainerTest.cs

@@ -19,7 +19,7 @@ namespace Microsoft.Research.DecisionServiceTest
     {
         public EndToEndTest()
         {
-            this.deleteOnCleanup = false;
+            this.deleteOnCleanup = true;
         }
 
         [TestMethod]