-------------------
- Fix deletion of blob-based content even if the field is not called 'file'
or 'image'.
[regebro]
- The `ImageField` could not be copied, which broke the standard way of
subclassing archetypes schemas.
[regebro]
- Migration screen tried to check for installation via quick installer. We
check the product of the destination portal type instead now. This closes
http://dev.plone.org/plone/ticket/10365.
[dunlapm, hannosch]
- Enable "Image" replacement content type by default.
[witsch]
- Don't break when image-specific methods are accidentally used on
"File" content.
[witsch]