- version_compare is core PHP, duh! No need to test for it! (Class-DB.php, Errors.php)

- Removed $pluginsdir from that place, while I'm at it. (Errors.php)
- $boarddir, $sourcedir, $cachedir, $pluginsdir, $cssdir and $jssdir are now all hard-coded, relative to ROOT_DIR (ex-$boarddir) which itself is determined through PHP. This is the second step towards making Wedge folder moves easier. (Class-CSS.php, Load.php, ManagePlugins.php, ManageSettings.php, OriginalFiles.php, QueryString.php, Subs-Plugins.php, Subs-Template.php, index.php, install.php, ManageSettings.english.php)

! Fixed a PHP 5.3-only constant (__DIR__) showing up before it was allowed to. My, didn't I already do that before..?! (index.php)

* Gained a portion of a microsecond or two for PHP 5.4+ by completely skipping the magic quote crap, including the function_exists test. It's approximately one billionth of the time it took me to type this, basically. But on every page. Don't complain. (index.php)

- Removed folder presence tests at the start. If you want to remove them, well... That's your problem. Plus, I get to use a geeky syntax in this code block. (index.php)

@ Note: $pluginsdir/$pluginsurl and PLUGINS/PLUGINS_DIR are actually removed entirely, replaced by ROOT_DIR/ROOT hardcodings. They weren't used enough in the generic code flow to be worth a constant. Also removed CORE and CORE_DIR constants, for the same reasons, but I'm willing to restore constants by popular request.

@ Also, ROOT_DIR now automatically turns backslashes into slashes, reverting the need for that manipulation later on. I can see no reason why it couldn't be done so early!