polish up new file and image uploading+solution

Option to delete:

Put a link just below the image, "Reset to blank". If this is clicked after they've uploaded a file or image, bring back the text box & Browse... button interface.

Looks like this was pushed (from use attachment fu for uploads+solution):

if any included card is in content view, pass CSS (e.g. |height: and |width:) in rather than applying it to the card.