Get all Online users that are not afk for the sweep.
Updated nuget.exe to latest.
Fixes #452. Added API entry point.

- Added ApiFrontPageController that serves up Janrain appId and api v2
  messages URL template.
- Renamed api directory to WebApi. This is to enable serving of /api URI.
  When a path is requested, IIS by default checks if a directory exists and
  would try to serve it, taking precedence over routes. This can be fixed by
  configuring IIS, but is a lot more work.
- Fixed up namespaces of all the files under WebApi directory to reflect the
  folder structure.
Merge pull request #502 from izevaka/master

Added API entry point.
Fix API generating URLs using private endpoint

- Fix API generating links using host and port of that particular worker
  instance - i.e. when running behind AppHarbour Load Balancer.
- Add helper methods for getting and setting IsLocal flag on
  HttpRequestMessage.
Fix formatting and add better comments

- Changed some variables to var
- Better comments around using Lazy<bool>
Merge pull request #509 from izevaka/master

Fix API generating URLs using private endpoint
Updated to SignalR 0.5.1.
Updated JabbR.Test
Added app id to the azure build script.
Updated to using dev build of SignalR.
Made a fix to SignalR's js client that caused a regression in calling methods on reconnected.
Added support for forcing and update.
Add Welcome property to ChatRoom model.
Add migration that adds Welcome column to ChatRooms table.
Extend RoomViewModel with Welcome property.
Introduce ChangeWelcome methods to INotificationService, IChatService and Chat.js.
Implement basic welcome message styles.
Add /welcome command.
Add /welcome to the command dictionary.