DNU doesn't get correct local app data folder on *nix with CoreCLR

[ChengTian]

https://github.com/aspnet/dnx/blob/dev/src/Microsoft.Framework.PackageManager/Restore/NuGet/HttpSource.cs#L193
(Search for LocalAppData in the file if it is updated)

To make it cross-plat, we can use similar approach as here: NuGet/Home#472

@BrennanConroy

[ChengTian]

Talked to @davidfowl and @BrennanConroy . This cross-plat-related issue should be moved to next milestone.

[muratg]

Let's do this in Beta 6.

cc @BrennanConroy

[BrennanConroy]

I believe this is waiting on #1692 which we will hopefully get in soon.

[ChengTian]

Yeah, I have a branch for this: https://github.com/aspnet/dnx/tree/wei/correct-local-appdata
and the final PR needs something from #1692