dw_to_wp - Move Dokuwiki pages to WordPress posts

This quick & dirty script moves Dokuwiki pages to WordPress posts.
The initial version was written by Beau Lebens, see
http://dentedreality.com.au/2013/01/29/import-dokuwiki-pages-into-wordpress/

Operation:
1) Copy the script to WordPress root.
2) Edit the uppercase variables: $DW_INDEXES, $DW_FETCH_URL, $AUTHOR_ID,
   $TAG_MAP and $PAGE_NAME_PREFIX
3) Prevent user login to WordPress
4) Back up your Wordpress data. Dump the WP MySQL table and make a copy of
   wp-content/uploads/.
5) Execute the script.
6) Enjoy the excellent results and remove the unnecessary backup files :-)