upgraded to autofac 3. created nancy only mode for nzbdrone.exe /n

NzbDrone.Common/EnsureThat/Ensure.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Linq.Expressions;
+
+namespace NzbDrone.Common.EnsureThat
+{
+    public static class Ensure
+    {
+        public static Param<T> That<T>(T value, string name = Param.DefaultName)
+        {
+            return new Param<T>(name, value);
+        }
+
+        public static Param<T> That<T>(Expression<Func<T>> expression)
+        {
+            var memberExpression = expression.GetRightMostMember();
+
+            return new Param<T>(
+                memberExpression.ToPath(),
+                expression.Compile().Invoke());
+        }
+
+        public static TypeParam ThatTypeFor<T>(T value, string name = Param.DefaultName)
+        {
+            return new TypeParam(name, value.GetType());
+        }
+    }
+}