revert #424
revert #424

Turns out it interacted badly with #420

billba/botchat,eanders-MS/BotFramework-WebChat,billba/botchat,billba/BotFramework-WebChat,danmarshall/BotFramework-WebChat,eanders-MS/BotFramework-WebChat,billba/botchat,danmarshall/BotFramework-WebChat,billba/BotFramework-WebChat,eanders-MS/BotFramework-WebChat,billba/BotFramework-WebChat,danmarshall/BotFramework-WebChat