Ensure dotnet sdk 2.1.300-rc1 is used in Travis, disable first time experience in AppVeyor [#157514780]

.appveyor.yml

@@ -20,6 +20,8 @@ build_script:
 artifacts:
   - path: '**\*.nupkg'
 environment:
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+  DOTNET_CLI_TELEMETRY_OPTOUT: 1
   ProjectList: Steeltoe.CloudFoundry.ConnectorBase Steeltoe.CloudFoundry.ConnectorCore Steeltoe.CloudFoundry.Connector.EF6Core Steeltoe.CloudFoundry.Connector.EFCore Steeltoe.CloudFoundry.ConnectorAutofac
   PackageReferencesToUpdate: SteeltoeConnectorVersion
   github_access_token:

.travis.yml

@@ -1,12 +1,13 @@
 language: csharp
 dist: trusty
 env:
+  TestFrameworkVersion: netcoreapp2.1
   STEELTOE_VERSION: 2.1.0
   global:
     - DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
     - DOTNET_CLI_TELEMETRY_OPTOUT: 1
 mono: none
-dotnet: 2.0.3
+dotnet: 2.1.300-rc1-008673
 os:
   - linux
   - osx

global.json

@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "2.1.300-rc1"
+    "version": "2.1.300-rc1-008673"
   }
 }

test/Steeltoe.CloudFoundry.Connector.EF6Core.Test/Steeltoe.CloudFoundry.Connector.EF6Core.Test.csproj

@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <Import Project="..\..\versions.props" />
-
   <PropertyGroup>
     <TargetFrameworks>net461</TargetFrameworks>
   </PropertyGroup>

test/Steeltoe.CloudFoundry.Connector.EFCore.Test/Steeltoe.CloudFoundry.Connector.EFCore.Test.csproj

@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <Import Project="..\..\versions.props" />
-
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.1;net461</TargetFrameworks>
   </PropertyGroup>

test/Steeltoe.CloudFoundry.ConnectorAutofac.Test/Steeltoe.CloudFoundry.ConnectorAutofac.Test.csproj

@@ -1,6 +1,5 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\versions.props" />
-
   <PropertyGroup>
     <TargetFrameworks>net461</TargetFrameworks>
   </PropertyGroup>

test/Steeltoe.CloudFoundry.ConnectorBase.Test/Steeltoe.CloudFoundry.ConnectorBase.Test.csproj

@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <Import Project="..\..\versions.props" />
-
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.1;net461</TargetFrameworks>
   </PropertyGroup>

test/Steeltoe.CloudFoundry.ConnectorCore.Test/Steeltoe.CloudFoundry.ConnectorCore.Test.csproj

@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <Import Project="..\..\versions.props" />
-
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.1;net461</TargetFrameworks>
   </PropertyGroup>