Rename "dotnet" to "NETStandard"

Fixes https://github.com/dotnet/corefx/issues/5707

We are changing the .NET packages to no longer use the ‘dotnet’, ‘dotnet5.x’, and ‘dnxcore50’ monikers.  This is thee first stage of the change for dotnet->netstandard.

The replacements are as follows

Old moniker | New moniker
----------------- | ------------------
dotnet5.x | netstandard1.y  (where y = x -1)
DNXCore50 | netstandardapp1.5
dotnet | netstandard1.3

To prepare for this change you can do the following to your project.json.  This change will require a recent build of NuGet or dotnet.exe and can be done prior to consuming the packages with the breaking change.  These packages will not work with DNX.

For a project targeting dotnet5.6
```
    "frameworks": {
        "netstandard1.5": {
            "imports": [ "dotnet5.6" ]
        }
    },
```

For a project targeting dnxcore50
```
    "frameworks": {
        "netstandardapp1.5": {
            "imports": [ "dnxcore50", "portable-net45+win8" ]
        }
    },
```

[tfs-changeset: 1578321]

6 files changed, 28 insertions, 18 deletions

diff --git a/src/System.Numerics.Vectors/ref/4.0.0/System.Numerics.Vectors.depproj b/src/System.Numerics.Vectors/ref/4.0.0/System.Numerics.Vectors.depproj
index d989b45789..936df44f24 100644
--- a/src/System.Numerics.Vectors/ref/4.0.0/System.Numerics.Vectors.depproj
+++ b/src/System.Numerics.Vectors/ref/4.0.0/System.Numerics.Vectors.depproj
@@ -1,11 +1,11 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <PropertyGroup>
     <AssemblyVersion>4.0.0.0</AssemblyVersion>
     <OutputType>Library</OutputType>
-    <PackageTargetFramework>dotnet5.4</PackageTargetFramework>
-    <NuGetTargetMoniker>.NETPlatform,Version=v5.4</NuGetTargetMoniker>
+    <PackageTargetFramework>netstandard1.3</PackageTargetFramework>
+    <NuGetTargetMoniker>.NETStandard,Version=v1.3</NuGetTargetMoniker>
   </PropertyGroup>
   <ItemGroup>
     <None Include="project.json" />
diff --git a/src/System.Numerics.Vectors/ref/4.0.0/project.json b/src/System.Numerics.Vectors/ref/4.0.0/project.json
index 39056e65e1..c525f988e5 100644
--- a/src/System.Numerics.Vectors/ref/4.0.0/project.json
+++ b/src/System.Numerics.Vectors/ref/4.0.0/project.json
@@ -3,8 +3,11 @@
     "System.Numerics.Vectors": "4.0.0"
   },
   "frameworks": {
-    "dotnet5.4": {
-      "imports": "portable-net45+win8"
+    "netstandard1.3": {
+      "imports": [
+        "portable-net45+win8",
+        "dotnet5.4"
+      ]
     }
   }
 }
\ No newline at end of file
diff --git a/src/System.Numerics.Vectors/ref/System.Numerics.Vectors.csproj b/src/System.Numerics.Vectors/ref/System.Numerics.Vectors.csproj
index 65f08d9e6f..0f1eabbce1 100644
--- a/src/System.Numerics.Vectors/ref/System.Numerics.Vectors.csproj
+++ b/src/System.Numerics.Vectors/ref/System.Numerics.Vectors.csproj
@@ -1,17 +1,17 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <PropertyGroup>
     <AssemblyVersion>4.1.1.0</AssemblyVersion>
     <OutputType>Library</OutputType>
-    <NuGetTargetMoniker>.NETPlatform,Version=v5.2</NuGetTargetMoniker>
+    <NuGetTargetMoniker>.NETStandard,Version=v1.1</NuGetTargetMoniker>
     <!-- remove when fixing https://github.com/dotnet/corefx/issues/5900 -->
     <SkipValidatePackageTargetFramework>true</SkipValidatePackageTargetFramework>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(PackageTargetFramework)' == ''">
-    <PackageDestination Include="ref/dotnet5.2">
-      <TargetFramework>dotnet5.2</TargetFramework>
+    <PackageDestination Include="ref/netstandard1.1">
+      <TargetFramework>netstandard1.1</TargetFramework>
     </PackageDestination>
     <PackageDestination Include="ref/portable-net45+win8">
       <TargetFramework>portable-net45+win8</TargetFramework>
diff --git a/src/System.Numerics.Vectors/ref/project.json b/src/System.Numerics.Vectors/ref/project.json
index 04ba7dde3a..1debae2d47 100644
--- a/src/System.Numerics.Vectors/ref/project.json
+++ b/src/System.Numerics.Vectors/ref/project.json
@@ -3,6 +3,10 @@
     "System.Runtime": "4.0.0"
   },
   "frameworks": {
-    "dotnet5.4": {}
+    "netstandard1.3": {
+      "imports": [
+        "dotnet5.4"
+      ]
+    }
   }
 }
\ No newline at end of file
diff --git a/src/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj b/src/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
index 2e8ad6bf5b..5137338db1 100644
--- a/src/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
+++ b/src/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <PropertyGroup>
@@ -9,12 +9,12 @@
     <DocumentationFile>$(OutputPath)System.Numerics.Vectors.xml</DocumentationFile>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <IsPartialFacadeAssembly Condition="'$(TargetGroup)'=='net46'">true</IsPartialFacadeAssembly>
-    <NuGetTargetMoniker Condition="'$(TargetGroup)' == ''">.NETPlatform,Version=v5.4</NuGetTargetMoniker>
+    <NuGetTargetMoniker Condition="'$(TargetGroup)' == ''">.NETStandard,Version=v1.3</NuGetTargetMoniker>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(PackageTargetFramework)' == ''">
-    <PackageDestination Include="lib/dotnet5.4">
-      <TargetFramework>dotnet5.4</TargetFramework>
+    <PackageDestination Include="lib/netstandard1.3">
+      <TargetFramework>netstandard1.3</TargetFramework>
     </PackageDestination>
     <PackageDestination Include="lib/portable-net45+win8">
       <TargetFramework>portable-net45+win8</TargetFramework>
diff --git a/src/System.Numerics.Vectors/src/project.json b/src/System.Numerics.Vectors/src/project.json
index 8ccfcbb218..2cc89b41b6 100644
--- a/src/System.Numerics.Vectors/src/project.json
+++ b/src/System.Numerics.Vectors/src/project.json
@@ -1,6 +1,6 @@
 {
   "frameworks": {
-    "dotnet5.4": {
+    "netstandard1.3": {
       "dependencies": {
         "System.Runtime": "4.0.0",
         "System.Resources.ResourceManager": "4.0.0",
@@ -8,11 +8,14 @@
         "System.Runtime.Extensions": "4.0.0",
         "System.Diagnostics.Tools": "4.0.0",
         "System.Diagnostics.Contracts": "4.0.0"
-      }
+      },
+      "imports": [
+        "dotnet5.4"
+      ]
     },
-    "net46":{
+    "net46": {
       "dependencies": {
-        "Microsoft.TargetingPack.NETFramework.v4.6": "1.0.1",
+        "Microsoft.TargetingPack.NETFramework.v4.6": "1.0.1"
       }
     }
   }