Add basic admin interface
Update publish profile
Read connection string from Azure env variable correctly. See:
* http://azure.microsoft.com/blog/2013/07/17/windows-azure-web-sites-how-application-strings-and-connection-strings-work/
* https://github.com/aspnet/Configuration/blob/dev/test/Microsoft.Framework.ConfigurationModel.Test/EnvironmentVariablesConfigurationSourceTest.cs
UI tweaks (show selected option, load other session in admin UI)