Update to F# 3.1.1

Author: mrward

src/AddIns/BackendBindings/FSharpBinding/FSharpInteractive.cs

@@ -108,6 +108,7 @@ public FSharpInteractive()
 		string FindFSharpInteractiveInProgramFilesFolder()
 		{
 			var fileNames = new string [] {
+				@"Microsoft SDKs\F#\3.1\Framework\v4.0\Fsi.exe",
 				@"Microsoft SDKs\F#\3.0\Framework\v4.0\Fsi.exe",
 				@"Microsoft F#\v4.0\Fsi.exe"
 			};

src/AddIns/BackendBindings/FSharpBinding/Templates/FSharp3ConsoleProject.xpt

@@ -31,7 +31,7 @@
 		</PropertyGroup>
 
 		<Imports clear="True">
-			<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets" />
+			<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.1\Framework\v4.0\Microsoft.FSharp.Targets" />
 		</Imports>
 
 		<Files>

src/AddIns/BackendBindings/FSharpBinding/Templates/FSharp3LibraryProject.xpt

@@ -31,7 +31,7 @@
 		</PropertyGroup>
 
 		<Imports clear="True">
-			<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets" />
+			<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.1\Framework\v4.0\Microsoft.FSharp.Targets" />
 		</Imports>
 
 		<Files>