Added retargeting code so the 4.0 project can use async await
Added extention methods to work around differences in reflection and async support.
Changed the output folders for each project, to relfect the .NET framework version they are being built with.
Updated the unit test project to build take a reference to the 4.5/PCL assembly.
Updated the example projects to take a dependency on the 4.5/PCL assembly.
Implements blueprint support-net35
Change-Id: Iefb776912cd8257b38a9aaf97cc7bb1b347b8892
63d036cc88