capture mime type in submission

[cjg@…]

At the moment mime type is handled very sketchely.

[moj]

Mime types still aren't handled - document format is set by looking at the extension, but should probably use the mime type. Alternatively, perhaps document formats should describe what mime types they can contain?

e.g. 'image' type can include image/jpeg, image/png, etc. Then the upload component can warn if an item is uploaded that might not be suitable for that format.

[pm705@…]

better in 3.2