- block.module:
    + renamed 'overview' to 'preview' as suggested by Kristjan.

- meta.module:
    + renamed 'verify' to 'preview' to make it consistent with
      block.module.
    + fixed comma-bug with attribute list reported by Kristjan.

- node.module:
    + fixed typo: "id$nid" should have been "id=$nid"