Switch to Flickr4Java

Hello, Brian. This pull request represents a fairly straightforward conversion from the flickrj library to a forked version of it called Flickr4Java (https://github.com/callmeal/Flickr4Java). Flickr4Java has the necessary update to use the SSL API endpoint as well as having switched to OAuth. I have also fixed a minor issue with collection icons that you probably saw my comments about in the issue queue.

Thanks for this great tool!

-Steve