Make crop align and smart crop depend on resize instead of manual crop.

Thumbor automatically crops the image when the resize parameter don't have the same aspect ratio as the original image.
When automatic cropping occurs the horizontal/vertical alignment parameters are used to set the anchor for the cropping process. The horizontal/vertical alignment parameters are ignored, if the smart parameter is present in the url. In this case smart detection is used to find the anchor point for cropping.

First example image created using ```resize(300,300)``` only to create the thumbor url.
![picture1](https://f.cloud.github.com/assets/818743/2408073/cceb5dd2-aa96-11e3-83f0-70e0254345d8.jpg)

Second example image created using ```resize(300,300)``` and ```align(RIGHT)``` to create the thumbor url.
![picture2](https://f.cloud.github.com/assets/818743/2408074/ccec1614-aa96-11e3-991c-b6edd43f1dc6.jpg)