Fixing issue in filesystem files view.
Fixing issue RavenDB-2549. This involved fixing several issues:
- Deserialization/serialization issues involving comunication from the
  server
- Issues that caused duplicated items in the status view
- Making the outgoing/incoming activity tables to be fixed for the last
  50 items.
Merge branch 'master' of https://github.com/Corvalius/ravendb

Conflicts:
	Raven.Studio.Html5/App/viewmodels/filesystem/status.ts