0.6.0 Release

* WebApiContrib.Formatting.CollectionJson and WebApiContrib.Formatting.CollectionJson.Client are now PCLs
* WebApiContrib.Formatting.CollectionJson.Server has been upgraded to .NET 4.5
* Web Api packages (Client and Server) have been updated to Web Api 2.1.
* NuGet package restore removed from all projects. (Thanks @jeffhandley for the help here)
* New BuildScript for MyGet provided by @xavierdecoster