Removing webroot: null from project.json
Updating build.sh to work on Mono
Cleaning up project.json
Merge branch 'release' into dev
Updating to release NuGet.config
Merge branch 'release' into dev
Merge branch 'release' into dev
Consume new HeadersSent API.
Update KProj to latest format
React to AddOptions change
Add schema version to kproj files
Moving IExpiration trigger into a new namespace

While refactoring the IFileSystem, IExpirationTrigger was moved to a new namespace. So moving this namespace as well.

Related PR: https://github.com/aspnet/FileSystem/pull/20/files
Updating to release NuGet.config