Updated Json.NET to version 4.5.11 in all projects.

Json.NET has started strong naming WP Silverlight packages with this version
causing issue #1223.
Updated katana reference.
Created a temporary fix to work more correctly with the WebSocket transport server.

- This covers all test case passes however there are edge cases having
to do with network disconnect that still need to be fixed

#1254
Merge branch 'release' into dev