Added the INetworkInformationService interface and implementation
LauncherService in WP7 will now try to use some of the known uris from WP8
Solved some issues with the AsyncStorageService
Added new NuGet package manifest file for Cimbalino.Phone.Toolkit.Background
Updated NuGet package manifests and build script
Added a minimum version requirement for Microsoft.Bcl.Async NuGet package