Added WorkerReceiver implementation and unit tests.
Made Worker implement IWorker interface
Using Cmdline to parse arguments, added controller URL parameter
Fixed concurrency issue with worker connections. Catching json exceptions
add performance counters to the UI
Implemented a graceful disconnect and cleaned up the UI
Intergration of database and UI
Performance counters are now displayed on the UI
Made changes as per code review feedback
Added reference to EntityFramework to LoadTestHarness, removed extra files
Made perf counter changes