4.45v From address clean up for gmail

1. E-Mail conversations search will now use from_address_clean attribute which is a new attribute without dot's in the name.
2. If whisper message is send it won't influence arrows in the dashboard widget or auto responder flow.
3. Chat print window was improved.

There is few queries to populate that field in the update file.
execute doc/update_db/update_315.sql for update

You can also just run this file after you have updated official version. You do not have to run this script if you are not using mail module.

php cron.php -s site_admin -c cron/update/update_445

Full Changelog: 4.44v...4.45v