Adding a call to the Reddit login API

Using an example found on Stack Overflow[1], I added a call to the Reddit API[2] to log the user in when "Go Back" is selected. The response JSON object is then written to the console log. It appears as though the user is logged in, but I don't know if the rest of the app knows the user is authenticated. Work still needs to be done.

[1] http://stackoverflow.com/questions/8790609/https-post-get-with-qml-qt
[2] https://github.com/reddit/reddit/wiki/API