User Level Changes

* All displayed links now pass through a central function. This provides the functionality to add a fake .html extension to the end of urls, along with making search engine friendly urls, even more friendly.
* The Who's Online Island has been rewritten to include color codes, search bots, etc.
* The shoutbox will now show username colors where appropriate. Also added an IRC like /me functionality.
* You may now change the Markup type while editing a post.
* New option on Active Topics to show Topics that do not have any replies yet.
* The following changes were made to the Text Editor:
o Smiley popup will no longer stretch to the skies imagination.
o PHP, SQL, Code and HTML sytnax highlighting.
o Popups now show correctly positioned in all browsers.
o Aligned image bbcode is now much easier to discover.
o The bigger/smaller images are moved to be vertically related.
o Popups autohide when you click the textarea.
o Modified spoiler and list tags. Spoilers now have spoiler=Message and list tags now support list=(circle|i|I|a|A|1|disc|square)
o Several media options, such as YouTube, Google Video, etc, which can be disabled or extended via the CP BBCode editor.