Reference assemblies from CSGCopyDeps

In order to easily build against our staged versions of RabbitMQ.Client
and Newtonsoft.Json, update project references to point to Lib
Sign EasyNetQ.dll and EasyNetQ.DI.Windsor.dll
Merge branch 'csg/signed-assemblies' into csg/stable-0.33.1.276
Merge branch 'csg/csgcopydeps' into csg/stable-0.33.1.276