Feature freezing repository for Coblynau release

Entering feature freeze for Coblynau release

AJAX login box now briefly shows the message "success" when a login is successful

Deprecated and removed Oxygen css-simple/bleu.css

Re-sync Oxygen and Mint and Oxygen simple with Oxygen main; a couple improvements to the redirect-on-no-config code

Re-add search_results hook and changed column type of search_index.word to varchar(64) in installer schema

Merging in new search algo from Scribus

Minor fix for the password meter in Admin:UserManager

Searching sucks, and Enano's search algorithm was complete bullcrap. So I rewrote it. No, it does not use Google search technology. Like they have a patent for using the Arial font on search result pages anyway.

Major fixes to the ban system - large IP match lists don't slow down the server miserably anymore.

Fixed a couple of renaming issues in the installer

Hopefully managed to put enough hacks in there to make renaming the config file the last step, so if it fails, it can be done manually

Removed stray debug message in installer

Well I'm an idiot - the fulltext index on page_text was missing from a default installation. It didn't break searches but probably slowed them down tremendously. Also set engine to MyISAM on page_text to avoid cryptic error messages from MySQL.

Major improvements in the security of the CAPTCHA system (no SQL injection or anything like that); fixed denied form submission due to _af_acting on form object wrongly switched to true