restsharp/RestSharp — pull request #529 by valeriob (2014-04-25 08:43:41+00:00)
Title: retarget SL5 with async support

I think restsharp should target Silverlight 5 instead of 4.
Upgrading projects from SL4 to 5 has always been trivial in my experience and i never found any downside. Instead one of the great benefit is the usage of async/awat.