Upgrade roslyn 3.0 (#10)

* upgraded to Roslyn 3.0

Author: Aaronontheweb

src/Incrementalist.Cmd/Incrementalist.Cmd.csproj

@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Build.Locator" Version="1.2.2" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="3.0.0-beta4-final" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0" />
   </ItemGroup>
 

src/Incrementalist/Incrementalist.csproj

@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="Libgit2Sharp" Version="0.26.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.0.0-beta4-final" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="2.2.0" />
   </ItemGroup>