Forum updated to 2.0.8

[RomCenter]

Fixed several vulnerabilities in admin pages
Fixed sid checking code in admin/pagestart.php
Fixed injection vulnerabilities possible with the img bbcode tag
Limited allowed images in img bbcode tag to jpg, jpeg, gif and png
Fixed redirect problems - 2.0.7a
Fixed sql injection vulnerability in search - 2.0.7a
Fixed sql injection vulnerability in privmsg - 2.0.8a