got step 2 complete
-all ts is concatenated to Application.js
in .csproj, below is the relevant segment
<PropertyGroup>
    <TypeScriptOutFile>app\js\Application.js</TypeScriptOutFile>
    <TypeScriptTarget>ES3</TypeScriptTarget>
    <TypeScriptModuleKind>AMD</TypeScriptModuleKind>
  </PropertyGroup>