#3868: Load Media Browser to select image for cropping.
#3868: JS file
#3868: Try to use existing AJAX to start crop tool
#3868: Crop form loads and appears to be functional.
#3868: Form saves with no errant validation errors.
#3868: Cleanup
#3868: Fix bugs with removing and adding new image again.
#3868: Prevent non-images from appearing in library
Merge branch 'SCHOLAR-3.x' into 3868-media_imagefield_crop
#3868: Remove imagefield_crop derivatives from media browser, always display version of image in preview
#3868: Place the Media Browser on top of the cropper tool.
#3868: Make this work for the Site Logo box.
Merge branch 'SCHOLAR-3.x' into 3868-media_imagefield_crop
Merge branch 'SCHOLAR-3.x' into 3868-media_imagefield_crop
Merge pull request #4554 from openscholar/3868-media_imagefield_crop

Use Media Browser for imagecrop fields