Thumbnailing fix
Commited fix to issue #1652 (http://ocportal.com/tracker/view.php?id=1652). [Corrupting of .htaccess for IP ban attempts for no-IP]
Commited fix to issue #1653 (http://ocportal.com/tracker/view.php?id=1653). [Filenames with two dots in a page directory, false hack-attempt detections]
Commited fix to issue #1657 (http://ocportal.com/tracker/view.php?id=1657). [Issues with invites]
Misc fixes