#338087: Default image support for ImageField. This isn't the final implementation I'd like to use, it'd feel better to have ImageField doing the sanitation itself.

#402860: Temporary fix to work around double (or triple) serialized data until #407446 is fixed in CCK core.

tnx.

#366989 by dopry, fix php notice for Undefined index class.

#295896 by Amitaibu and webchick, Allow file's description field to be hidden and set defaults for field settings.

merging all drupal 6 updates into a single update function...

only works on the way in.