Update to AvalonEdit 6.0 RTM

Update AppVeyor script to no longer install netcore3 SDK (VS 16.3 includes that)
Set global.json to netcore3 RTM

ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj

@@ -37,7 +37,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AvalonEdit" Version="6.0.0-rc1" />
+    <PackageReference Include="AvalonEdit" Version="6.0.0" />
   </ItemGroup>
 
   <ItemGroup>

ILSpy/ILSpy.csproj

@@ -48,7 +48,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AvalonEdit" Version="6.0.0-rc1" />
+    <PackageReference Include="AvalonEdit" Version="6.0.0" />
     <PackageReference Include="Microsoft.VisualStudio.Composition" Version="15.5.23" />
     <PackageReference Include="Mono.Cecil" Version="0.10.3" />
     <PackageReference Include="OSVersionHelper" Version="1.0.11" />

appveyor.yml

@@ -7,7 +7,6 @@ configuration:
 image: Visual Studio 2019
 
 install:
-- cmd: choco install dotnetcore-sdk --pre
 - git submodule update --init --recursive
 - ps: .\BuildTools\appveyor-install.ps1
 

global.json

@@ -3,6 +3,6 @@
 		"MSBuild.Sdk.Extras": "2.0.24"
 	},
 	"sdk": {
-		"version": "3.0.100-rc1"
+		"version": "3.0.100"
 	}
 }