combobox can send now focused with enter when a complete match exsits like 5 in priority in spamfilters

smaller tabs in no_image and 32x32, admin has under 1024 all tabs in 1 row and in no_image some space free for 2 more tabs

Added 2 guidelines -> About ereg,split... (removed in php 5.4 or 6, different informations on php.net) and no shorttags, use <?php always and no <?

fieldset border-color set for all browsers @till blue looks in all colors bad with 1px, i used now gray + Remoteuser list, add user button has now a fieldset like every other form (i had without a problem in FF8)

fix #1747 - check for amavised for postfix rules -> pure webserver need for php sendmail, most often postfix is used for it, because admin know it. I checked different repos for differnet names, alwas amavsid or with -new.

Removed unused database tables: 

DROP TABLE `mail_greylist`;
DROP TABLE `firewall_filter`;
DROP TABLE `firewall_forward`;
DROP TABLE `proxy_reverse`;

- Added tables for web folder protection.

- Fixed FS#1745.

empty value better see, ^Cigger is mouseover body (still better after ajax request), css fixes (chromium,FF,Opera,rekonq,IE), 1 sprite image in gray for icons

http://bugtracker.ispconfig.org/index.php?do=details&task_id=1681

I've NOT tested this fix, but i think it should be fine.
Someone with Dovecot, please test.