Added Image Generation

Image generation will pull file names and x/y info from the images.json config file. Started things off with the Taylor Swift template.


Right now the images are just generated and served from memory, so there's no way to link to them. Next feature should probably write them to the temp folder based on a hash of the quote + image template perhaps and use something like images/template/hash. 

![taylor_swift](https://f.cloud.github.com/assets/738110/1086057/b31aa26a-15ee-11e3-9bf3-21ccf6933a4c.png)