Updated Sinatra to get it to begin outputting values

* Added in display class.
* Started outputting lives to webview
* Set Sinatra to automattically reload to save having to restart the server every time we make a change
Made it so on user input we update hangman output
Horrible implimentation of front-end display code - Really needs refactoring
Refactored view models to make them a bit more succient
Simple changes to webapp display