Merge pull request #1 from taeram/master

Added SQS_QUEUE example, fixed json
updating readme adding license.
Fix license copyright
Merge pull request #2 from jessemiller/patch-1

Fix license copyright
Adding better error handling around a queue not existing.
refactoring the thumbnailer to accept different thumbnailing strategies. added a method for grabbing image dimensions.
checked in a typo to the README.md
refactoring thumbnailer.js, in prep for making it easy to pass in different thumbnailing strategies.
adding the new bounded resizing strategy, resizes the image keeping it with a given bounds.
you can now modify the matte background in the thumbnail descriptions.
updating documentaion.
updating documentaion.
updating documentaion.
updating version #.
don't stretch an image when using the bounded resizing strategy.
bounded resizing strategy is now the default thumbnailing strategy.
Creating a point release.
simplified bounded thumbnail creation.
updating thumbd version #.
The S3 keys need to be url encoded.