1.0.4

*   Saves image title if a "title" or "alt" attribute is set on the
remote image
*   Fixed bug with revisions
*   Avoid uploading several times the same image (checking its source,
which is saved as "_ari-url" post meta)
*   Whole image tag replacement, not only source url replacement.  Can
be filtered with hook 'ari_get_attachment_html'.
*   Changed regex stuff with DOM parser (more reliable)
*   Replaced SQL queries with WP core functions
*   Wrapped plugin into a class