Fixed Maybe?
Fixed #1199 by replacing '/' with '\' in Nupkg.GetFiles in order to work with NuGet.Core's logic for extracting Framework Name
Test ALL THE THINGS!
Merge pull request #1203 from NuGet/anurse-1199-getupdatesbroken

Replace '/' with '\' in Nupkg.GetFiles in order to work with NuGet.Core's logic for extracting Framework Name