Improve image preview a bit.
Improve image preview a bit.

If file claims to be an image but isn't, don't crash but set type to "other" and continue.
Avoid rotating and saving if no rotation is necessary.
Set preview size to accomodate landscape format.
Mark title "Preview" for translation.
matthiask/feincms2-content,mjl/feincms,matthiask/django-content-editor,feincms/feincms,pjdelport/feincms,joshuajonah/feincms,matthiask/django-content-editor,nickburlett/feincms,hgrimelid/feincms,joshuajonah/feincms,mjl/feincms,nickburlett/feincms,matthiask/feincms2-content,nickburlett/feincms,joshuajonah/feincms,hgrimelid/feincms,michaelkuty/feincms,michaelkuty/feincms,hgrimelid/feincms,pjdelport/feincms,joshuajonah/feincms,mjl/feincms,matthiask/django-content-editor,pjdelport/feincms,nickburlett/feincms,feincms/feincms,michaelkuty/feincms,feincms/feincms,michaelkuty/feincms,matthiask/feincms2-content,matthiask/django-content-editor