IE8 Support
Removed CSS expression, which is no longer supported in IE8+, so it is not needed by any of this plugins supported browsers. This line was also causing compile errors in some Less pre-processor libraries.
Fixed bug where if cropbox element was in a form element, the zoom-in and zoom-out buttons would submit the form. This is because buttons have the default type of "submit"
Merge pull request #46 from tyleregeto/master

IE8 Support