Add Support for Visual Studio 2013

src/Extensions/VisualStudio/Gallio.VisualStudio.Interop/VisualStudioManager.cs

@@ -47,6 +47,7 @@ public class VisualStudioManager : IVisualStudioManager
                 { VisualStudioVersion.VS2008, new VisualStudioVersionInfo() { Name = "9.0", ProgID = "VisualStudio.DTE.9.0" } },
                 { VisualStudioVersion.VS2010, new VisualStudioVersionInfo() { Name = "10.0", ProgID = "VisualStudio.DTE.10.0" } },
                 { VisualStudioVersion.VS2012, new VisualStudioVersionInfo() { Name = "11.0", ProgID = "VisualStudio.DTE.11.0" } },
+				{ VisualStudioVersion.VS2013, new VisualStudioVersionInfo() { Name = "12.0", ProgID = "VisualStudio.DTE.12.0" } },
             };
 
         /// <summary>
@@ -254,7 +255,8 @@ private static bool ForEachApplicableVersion(VisualStudioVersion version, Func<V
         {
             if (version == VisualStudioVersion.Any)
             {
-                return action(VisualStudioVersion.VS2012)
+                return action(VisualStudioVersion.VS2013)
+					|| action(VisualStudioVersion.VS2012)
                     || action(VisualStudioVersion.VS2010)
                     || action(VisualStudioVersion.VS2008)
                     || action(VisualStudioVersion.VS2005);

src/Extensions/VisualStudio/Gallio.VisualStudio.Interop/VisualStudioVersion.cs

@@ -48,5 +48,10 @@ public enum VisualStudioVersion
         /// Visual Studio 2012.
         /// </summary>
         VS2012 = 4,
+
+		/// <summary>
+        /// Visual Studio 2013.
+        /// </summary>
+        VS2013 = 5,
     }
 }