bump to v5.6.1

Author: mythz

src/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <Version>5.5.1</Version>
+    <Version>5.6.1</Version>
     <AssemblyVersion>5.0.0.0</AssemblyVersion>
     <Authors>ServiceStack</Authors>
     <Company>ServiceStack, Inc.</Company>

tests/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <Version>5.5.1</Version>
+    <Version>5.6.1</Version>
     <AssemblyVersion>5.0.0.0</AssemblyVersion>
     <LangVersion>latest</LangVersion>
 	<Authors>ServiceStack</Authors>

tests/ServiceStack.OrmLite.Tests/OrderByTests.cs

@@ -1,5 +1,7 @@
-using System.Linq;
+using System;
+using System.Linq;
 using NUnit.Framework;
+using ServiceStack.DataAnnotations;
 using ServiceStack.OrmLite.Tests.Expression;
 using ServiceStack.Text;
 
@@ -76,6 +78,5 @@ public void Can_OrderBy_multi_table_expression()
                 var results = db.Select(q);
             }
         }
-        
     }
 }