Update to netcore 2.0?

Hi!

I've just discovered this starter kit while I was searching something to kick start with asp.net core + react. I haven't dug deep but the first thing I encountered is that a created project is based on the old stack of netcore1.0 and dnx. Is there any plans to update the template to netcore2.0?

Anyway a generated project fails to build:
```
Configuring...
-------------------
A command is running to initially populate your local package cache, to improve restore speed and enable offline access. This command will take up to a minute to complete and will only happen once.
Decompressing 100% 7216 ms
Expanding 100% 16302 ms
Failed to create prime the NuGet cache. new failed with: -2147352571
MSBUILD : error MSB1008: Only one project can be specified.
Switch: server.test

For switch syntax, type "MSBuild /help"
npm ERR! code ELIFECYCLE
```
I have netcore2.0 sdk installed obviously.

The payload names no files or tests; start by reproducing the generated project's build failure with the installed .NET Core 2.0 SDK, then inspect the template's netcore 1.0 and DNX configuration. Done means the generated ASP.NET Core and React project restores and builds successfully on the newer SDK.

Written by the indexing model from the issue text.