Fix up issue with nuget file and cleanup pr

TestProjects/Mac-Support/Collections/Collections.Core/Class1.cs

@@ -1,8 +0,0 @@
-using System;
-
-namespace Collections.Core
-{
-    public class Class1
-    {
-    }
-}

TestProjects/Mac-Support/Collections/Collections.Core/Collections.Core.csproj

@@ -1,7 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netstandard1.3</TargetFramework>
-  </PropertyGroup>
-
-</Project>

nuspec/MacBootstrapContent/WebBrowserPluginBootstrap.cs.pp

@@ -0,0 +1,9 @@
+using MvvmCross.Platform.Plugins;
+
+namespace $rootnamespace$.Bootstrap
+{
+    public class WebBrowserPluginBootstrap
+        : MvxLoaderPluginBootstrapAction<MvvmCross.Plugins.WebBrowser.PluginLoader, MvvmCross.Plugins.WebBrowser.Mac.Plugin>
+    {
+    }
+}