text area instead of textfield for checkboxes

Issue Summary

It would be nice of those textfields for the extra text boxes were textareas instead; textfields are inadquate for longer checkboxes.

I don't see reason to make a patch for a 4 letter change, so >
line 220 textfield=>textarea.

Doesn't have problems database wise since the field is 'text' already.

(Additional checkbox change: Hm, something like, if the the first extra checkbox was required and the primary checkbox so the text could be altered, but haven't looked into that. )