Added class to download nuget packages
Merge branch 'develop' of https://github.com/MatthewRobson/Hackathon2013 into develop

Conflicts:
	PackageChangeNotifier/PackageChangeNotifier.v11.suo
	PackageChangeNotifier/PackageChangeNotifier/Program.cs
	PackageChangeNotifier/PackageChangeNotifier/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
	PackageChangeNotifier/PackageChangeNotifier/obj/Debug/TestConsoleApp.csproj.FileListAbsolute.txt