Added some tests for the getPublicKey and getImageIdentifier parts of the URLs
Added support for fetching the public key and the image identifier from the URL instances
Removed the short URL tests for now
Added a command and a response model for adding short URLs
Renamed the getShortUrl method to generateShortUrl and made it work with the way Imbo now handles short URLs
Keep the getShortUrl method
Fixed parse error in php-5.3
Merge pull request #93 from christeredvartsen/issue-93

Short URL update