Added Visual Studio 2015 support

Author: vlasenkoalexey

.gitignore

@@ -3,7 +3,6 @@
 *.exe
 *.pdb
 *.suo
-*.csproj.user
 *.mdf
 *.ldf
 bin/

FSharp.Interactive.Intellisense/FSharp.Interactive.Intellisense.csproj

@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
-    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">12.0</VisualStudioVersion>
+    <MinimumVisualStudioVersion>$(VisualStudioVersion)</MinimumVisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
   </PropertyGroup>
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
@@ -111,6 +110,11 @@
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Resources.resx">

FSharp.Interactive.Intellisense/FSharp.Interactive.Intellisense.csproj.user

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
+    <StartAction>Program</StartAction>
+    <StartProgram>C:\Program Files %28x86%29\Microsoft Visual Studio $(VisualStudioVersion)\Common7\IDE\devenv.exe</StartProgram>
+    <StartArguments>/rootsuffix Exp</StartArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|AnyCPU'">
+    <StartAction>Program</StartAction>
+    <StartProgram>C:\Program Files %28x86%29\Microsoft Visual Studio $(VisualStudioVersion)\Common7\IDE\devenv.exe</StartProgram>
+    <StartArguments>/rootsuffix Exp</StartArguments>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ProjectView>ShowAllFiles</ProjectView>
+    <PublishUrlHistory />
+    <InstallUrlHistory />
+    <SupportUrlHistory />
+    <UpdateUrlHistory />
+    <BootstrapperUrlHistory />
+    <ErrorReportUrlHistory />
+    <FallbackCulture>en-US</FallbackCulture>
+    <VerifyUploadedFiles>false</VerifyUploadedFiles>
+  </PropertyGroup>
+</Project>

FSharp.Interactive.Intellisense/FsiLanguageServiceHelper.cs

@@ -28,7 +28,8 @@ internal class FsiLanguageServiceHelper
 
         public FsiLanguageServiceHelper()
         {
-            fsiAssembly = Assembly.Load("FSharp.VS.FSI, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
+            EnvDTE.DTE dte = (EnvDTE.DTE)Package.GetGlobalService(typeof(EnvDTE.DTE));
+            fsiAssembly = Assembly.Load(String.Format("FSharp.VS.FSI, Version={0}.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", dte.Version));
             fsiLanguageServiceType = fsiAssembly.GetType("Microsoft.VisualStudio.FSharp.Interactive.FsiLanguageService");
             sessionsType = fsiAssembly.GetType("Microsoft.VisualStudio.FSharp.Interactive.Session.Sessions");
             fsiWindowType = fsiAssembly.GetType(FsiToolWindowClassName);

FSharp.Interactive.Intellisense/source.extension.vsixmanifest

@@ -6,7 +6,8 @@
     <Description xml:space="preserve">Basic intellisense support for F# Interactive</Description>
   </Metadata>
   <Installation>
-    <InstallationTarget Id="Microsoft.VisualStudio.Pro" Version="12.0" />
+    <InstallationTarget Id="Microsoft.VisualStudio.Pro" Version="[12.0,15.0)" />
+    <InstallationTarget Version="[12.0,15.0)" Id="Microsoft.VisualStudio.Enterprise" />
   </Installation>
   <Dependencies>
     <Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" d:Source="Manual" Version="4.5" />