Getting ready for CocoaPods

Hi Bryan,

I'm just doing some cleanup on this repo so we can make it into a CocoaPod so other developers can easily access it. Take a look at the pull request – the major things are outlined in the commit messages. I had to include a new JPEG test image, since the one in the project was not in the repo – it's one I took, and I'm happy to release it. 

After you merge this, pull the changes down on your local machine, and then tag it. Then I'll create a CocoaPod podspec based on that tag. 

    git tag 1.0
    git push --tags

And then expect another pull request. Then we can incorporate the podspec in Upcoming's source. 

Thanks,
Ash