Add high weight to attachments table.

  Fixed bug showing file attachment list on teasers.

Removed "Hi Tao" message;
Moved db weight correction here from _admin;
Wrapped messages in t();

Make sure module runs after upload module by bumping weight. Hopefully will address http://drupal.org/node/200537 (thanks schultkl)
http://drupal.org/node/202235: schultkl's Fix for migrating private files if same file attached to multiple nodes.

Fixed http://drupal.org/node/201547 No longer using get_header().  Thanks schultkl.
Fixed http://drupal.org/node/199920 PHP4 doesn't like default values for references.
Creating test file in private folder.

Fixing: http://drupal.org/node/199245

http://drupal.org/node/197064