Multipe Image Resizer Script: Resize images in several ways

This class can resize images in several ways.

It can take an image in either JPEG, PNG or GIF format and resize it to:

- The given width and height exactly
- Use the given width and keeping the original proportions of the height
- Use the given height and keeping the original proportions of the width
- Determine automatically to use the given width or height and keep the proportions of the other dimension
- Crop the image keeping the original proportions

The class comes with a script that can call the class to resize many images at once.