multiple crop controls
fix crop sizes in ie8
crop styles & layers optimization
l10n, current crop size
fix crop sizes place
add 50% b-w in firefox
uploadcare-dialog-preview-root role
wait for preview loading. pros:
— crop interface without loader looks broken
— loader via progressive jpegs not possible in all browsers
and still take long time before first image chunk
— external gif can load slower then first chunk of image