2.3.0

Binding redirects from target platform only - #1070
Allow to enable redirects per package - http://fsprojects.github.io/Paket/nuget-dependencies.html#redirects-settings
BUGFIX: Install command without a lockfile failed when using groups - #1067
BUGFIX: Only create packages.config entries for referenced packages - #1065
BUGFIX: Paket update added an app.config to every project - #1068
BUGFIX: Use commit w/gist download in RemoteDownload.downloadRemoteFiles - #1069