Additional Contexts not working in DicomClient.cs

Sorry for the sloppy request was not sure how to exclude unneeded change sets
see DicomClient.cs changes in d8e0db34d6908a2b9eb1332c3fd52d25ecb01eec
-		public List<DicomPresentationContext> AdditionalPresentationContexts {
-			get;
-			set;
did not add any contexts to _context