This allows HTCP purges for different domains to be sent to different
multicast groups, based on regexes. Mark requested this so we could
separate the multicast groups for upload caches and text caches.
This code is UNTESTED, I'm mostly submitting this as a proof of concept
and to invite review by other core devs (specifically Tim).
Change-Id: Ie333a04131d6ca8394884ed1054f2baff55ab2d1
* Added $wgLanguageConverterCacheType global to control LC cache type. We can use it to enable direct apc use for language converter (to match the live hack).
* Added $wgLangConvMemc object, available via Setup.php
Change 1:
* Updated unit tests
* Minor documentation cleanup in DefaultSettings.php
Change-Id: Icd5dd28407e9759ce294c784ec41d9ca15c89616
A gzipped file cache is enabled by setting $wgUseGzip and $wgUseFileCache.
To save CPU cycles, HTMLFileCache would print the compressed output as is
but WebStart uses an ob_gzhandler so we end up with a double compression.
* Add the mediawiki.debug module from OutputPage::addDefaultModules() along with other modules
* Get the request information when building the JS output instead of in Setup.php
MWDebug initialization method was made to look up for a global variable. This
patch move the logic to Setup.php so we can replicate it when doing tests.
Side effect, MWDebug is disabled by default. Users will explicitly have to
enable it by using init().
Ping r105123
apibase is used for fetching content from the server as well as determining description pages, so should use a full-qualified protocol when the site's in https.
* Refactored FileRepo::initZones() to require the specific zones; nothing was using it differently.
* Removed deleted zone check in deleteBatch(), a similar error will instead trigger with the initZones() call as needed.
* Added $wgLocalFileRepo comment.
* Updated tests.
* Added gender parameter to newuserlog-create2-entry
* Hide old comments (for all log types!)
* logentry-newusers-newusers needs a message after all
* Move user tool links away from the action links and drop the User: prefix from create2
* Introduce $wgCanonicalServer, which should typically be a fully qualified version of $wgServer but in practice can be anything that you'd like to be used in IRC/e-mail notifs
** Default value is $wgServer, expanded to http:// if protocol-relative
** This means you can easily set HTTPS as the 'default' protocol to use in IRC and e-mail notifs by setting $wgCanonicalServer to https://example.com
* Introduce Title::getCanonicalURL(). Similar to getInternalURL(), including a hook for WMF usage (which will be needed as long as secure.wikimedia.org is used)
** Also add escapeCanonicalURL(). Due to some ridiculous accident of history, the other escapeFooURL() functions don't have a $variant parameter; I decided not to follow that bad example
* Reinstate the spirit of r44406 and r44412: instead of calling getInternalURL() (or getCanonicalURL()) and regexing the title parameter out, obtain the path to index.php using $wgCanonicalServer . $wgScript and append params to that. Sadly, we need to add a hook here to support the secure server hack for WMF, but that's the price of saner code in this case
* Introduce the {{canonicalurl:}} and {{canonicalurle:}} parser functions, which work just like {{fullurl:}} and {{fullurle:}} except that they use getCanonicalURL() instead of getFullURL()
* Use {{canonicalurl:}} in the enotif_body message, fixing bug 29993 (protocol-relative URLs appear in e-mail notifications)
* Added HTTP response code parsing (sending a "HTTP/1.x code" header was throwing a NOTICE about undefined index on the result of the explode() call) and storage; added FauxResponse::getStatusCode() to retrieve it
Exposing it in the default LocalSettings.php as I did in r90105 was not a good solution, really the only way to avoid breakage is to just get the protocol from $wgServer whenever you need the protocol.
Fixed $wgCookieSecure so that it will be enabled automatically if the user sets $wgServer to an https URL in LocalSettings.php. Added documentation for other cookie-related globals.
Grep indicates that $wgProto is not used by any extensions. $wgCookieSecure is used, hence the need for the Setup.php patch.
Also removed htmlHeader() and htmlFooter() since it has zero callers anywhere.
Not sure why useOutputPage() was checking isArticleRelated(), we should be able do use it with other stuff too
* Scan the C++ for volatile classes and show a warning with a list of them
* Fixed volatile classes Revision, CoreLinkFunctions and FileRepoStatus, made them non-volatile by patching the referring code
* Added some configuration for the build process to DefaultSettings.php.
* Split a few functions off MakeHipHop::execute()
* Only include UtfNormalDefines.php in interpreted mode, since in compiled mode, the constants exist from startup
* Apparently HipHop does not support set_exception_handler(). Added a try/catch block around the main part of index.php instead.
* Fixed ini_get() dependencies in Special:Upload. Upload now works, if you disable ZipDirectoryReader.
* Encapsulate index.php in wfIndexMain() (similar to r77873)
* Kill $wgArticle check in Exception, not necessary anymore
* Kill $wgArticle in Setup, also not necessary
* Add angry note about $wgArticle to rebuildFileCache.
* Remove note about $wgArticle in Parser since it's dying anyway
The global is used for a call to PHP mail() function as a way to add
additional parameters. This will cause mail() to send E_NOTICE when
using safe mode.
Since we could use the global at different places, it makes sens to
ensure it has a sane value through Setup.php
Follow up r75557
* (bug 26033, bug 24754) Added $wgArticleCountMethod to have a more flexible way to define which method to use to define if a page is an article or not and deprecated $wgUseCommaCount. There is now a new 'any' method to count any article that is in a content namespace and not a redirect.
* (bug 11868) If using links to count articles, Article::isCountable() will now use the ParserOutput to check if there's a link instead of checking for the "[[" string. Changed Article::isCountable() to take a stdObject or false for the first parameters. If false is passed, the result will be based on the current article's state (i.e. database). The only call outside of the Article class is in DeleteAction (including extensions).
* Removed this horror of Article::$mGoodAdjustment and Article::$mTotalAdjustment, replaced by the new $created parameter on Article::editUpdates(); simplified Article::createUpdates()
* Updated Import.php to take advantage of the new parameter and make a single call to Article::editUpdates()
This is basicly a merge of r84386 & r84491, see their commit messages for
more details.
r84386 makes wikilinks nicer by updating the URL forge implemented by r2621
r84491 fix an issue with the (un)?watch links. getParamValue should not be
used to guess 'title' or 'action'
* Actions come in two flavours: the show-a-form-then-do-something-with-the-result (delete, protect, edit, etc) and the just-do-something (watch, rollback, patrol, etc). Create abstract base classes Action and FormlessAction to support these two cases. HTMLForm is an integral part of the form-based structure.
* Look mum, no globals! :D Fully context-based.
* Implement watch/unwatch, credits and delete actions in the new system as proof-of-concept. This also gives the delete frontend a much-needed overhaul.
* Stub out the newly-deprecated functions from Article.php. This already reduces its linecount by about 15%, and there are plenty more actions still to do.
* Centralising actions like this is going to render a lot of hooks type-incompatible. There's simply nowhere you can put the ArticleConfirmDelete hook, for instance, where it can be passed an OutputPage as the second parameter. On the other hand, we can implement new hooks like ActionModifyFormFields and ActionBeforeFormDisplay, which can do much prettier stuff to the forms, like adding extra fields the 'right' way. Update LiquidThreads to use these new hooks where appropriate.
* (bug 14202) $wgUseTeX has been superseded by the Math extension. To re-enable
math conversion after upgrading, obtain the Math extension from SVN or from
http://www.mediawiki.org/wiki/Extension:Math and add to LocalSettings.php:
require_once "$IP/extensions/Math/Math.php";
This is an initial stab, and a few things remain to be cleaned up:
* messages need to be moved from core to extension
* MW_MATH_* constants should be moved to the extension from core
* old back-compat math names interfaces using those constants should be removed from message files
* classic edit toolbar's math button should be added from the extension (or else dropped) -- currently there's not a clean hook, but could do it by JS
* couple of things like the 'armourMath' function on Language & LanguageConverter may want to be redone just as an unconditional, if that's simpler.
Setting $wgUseTeX alone will no longer have any affect. The var's still there for the moment as a few bits still need to be fully moved out from core.
* Work around HipHop issue 314 (volatile broken) and issue 308 (no compilation detection) by adding some large and ugly compilation detection code to WebStart.php and doMaintenance.php.
* Provide an MW_COMPILED constant which can be used to detect compiled mode throughout the codebase.
* Introduced wfIsHipHop(), which detects either compiled or interpreted mode. Used this to work around unusual eval() return value in eval.php.
* Work around lack of ini_get() in Maintenance.php, by duplicating wfIsHipHop().
* In Maintenance::shouldExecute(), accept "include" as an inclusion function name, since all kinds of inclusion give this string in HipHop.
* Introduced new class MWInit, which provides some static functions in the pre-autoloader environment.
* Introduced MWInit::compiledPath(), which provides a relative path for invoking a compiled file, and MWInit::interpretedPath(), which provides an absolute path for interpreting a PHP file. Used these new functions in the appropriate places.
* When we are running compiled code, don't include files which would generate duplicate class, function or constant definitions. Documented the new requirements on the contents of Defines.php and UtfNormalDefines.php.
* In HipHop compiled mode, it's not possible to have executable code in the same file as a class definition.
** Moved MimeMagic initialisation to the constructor.
** Moved Namespace.php global variable initialisation to Setup.php.
** Moved MemcachedSessions.php initialisation to the caller in GlobalFunctions.php.
** Moved Sanitizer.php constants and global variables to static class members. Introduced an accessor function for the attribs regex, as a new place to put code formerly at file level.
** Moved Language.php initialisation of $wgLanguageNames to Language::getLanguageNames(). Removed the global variable, marked "private" since forever.
* In two places: don't use error_log() with type=3 to append to a file, HipHop doesn't support it. Use file_put_contents() with FILE_APPEND instead.
* Work around the terrible breakage of class_exists() by using MWInit::classExists() instead in various places. In WebInstaller::getPageByName(), the class_exists() was marked with a fixme comment already, so I replaced it with an autoloader solution.
* Don't stub RequestContext. The chances of us getting away without needing to access *any* of the six major globals is nil, and in the meantime it's screwing up strong function typing and throwing catchable fatals everywhere.
* Stop stubbing $wgOut. The only path where we can avoid unstubbing it is if we immediately die due to maxlag overflow, and that's a) a pretty uncommon code path, and b) a DB issue which won't be affected by a tiny bit of extra apache load. That allows us to do strong typing on function parameters with it, which is a Good Thing (TM).
Also make OutputPage::getContext() private; I'm not convinced that a context belongs here (it's *part of* the context, not a consumer of it), let's work through it a it more before we advertise its existence.
This patch mostly impact Title:getLocalUrl() with two changes:
1) Abstraction:
$wgActionPath related code is now in Title::resolveActionPath(). It now
interprets query parameters using an array which is easier to read than
playing with a regexp and the evil $matches[].
2) Tweaking:
Change the 7 years old (r2621) URL forge:
"{$wgScript}?title={$dbkey}&{$query}"
=> /w/index.php?title=FOO&q=2
To a nicer
"str_replace( '$1', $dbkey, $wgArticlePath )"
=> /wiki/FOO?q=2
Additional changes:
* Parser tests were modified to reflect the changes.
* PHPUnit TitleTest amended to test getLocalUrl() (add more!!)
* When using wgActionPaths, makes sure the 'view' action is a sane default
* Moved the global functions to GlobalFunctions.php, where they are now just convenience wrappers. Made them return non-references. Updated callers (none found in extensions).
* Added an advanced configuration method, $wgObjectCaches, which allows a lot more detail in the object cache configuration than $wgMainCacheType.
* Made all object cache classes derive from BagOStuff.
* Split the MWMemcached class into a generic client class and a MediaWiki-specific wrapper class. The wrapper class presents a simple BagOStuff interface to calling code, hiding memcached client internals, and will simplify the task of supporting the PECL extension.
* Added some extra constructor parameters to MWMemcached, configurable via $wgObjectCaches.
* Removed the *_multi() methods from BagOStuff, my grepping indicates that they are not used.
* Rewrote FakeMemCachedClient as a BagOStuff subclass, called EmptyBagOStuff.
* Added an optional "server" parameter to SQLBagOStuff. This allows the server holding the objectcache table to be different from the server holding the core DB.
* Added MultiWriteBagOStuff: a cache class which writes to multiple locations, and reads from them in a defined fallback sequence. This can be used to extend the cache space by adding disk-backed storage to existing in-memory caches.
* Made MWMemcached::get() return false on failure instead of null, to match the BagOStuff documentation and the other BagOStuff subclasses. Anything that was relying on it returning null would have already been broken with SqlBagOStuff.
* Fixed a bug in the memcached client causing keys with spaces or line breaks in them to break the memcached protocol, injecting arbitrary commands or parameters. Since the PECL client apparently also has this flaw, I implemented the fix in the wrapper class.
* Renamed BagOStuff::set_debug() to setDebug(), since we aren't emulating the memcached client anymore
* Fixed spelling error in MWMemcached: persistant -> persistent
* MessageCache::singleton() calls wfGetMessageCacheStorage() directly instead of using $messageMemc, just in case this would be called before that variable is set
* Per TimStarling: also removed deprecated methods in MessageCache class: addMessages() and related, [get|set|enable|disable]Transform(), loadAllMessages(), loadMessageFile() and some others. Same for the legacyData stuff in LocalisationCache that was only used by MessageCache::addMessages() and related.
* Converted remaining extensions
* Don't set $IP. The entry point already sets it, so there's no point. Users can still set it if they can figure out a way to do it without breaking things.
* Don't include DefaultSettings.php. Doing that is code, not configuration, and it can easily be done in WebStart/Maintenance. Some non-standard entry points in extensions may be broken by this. That's their fault for being non-standard. Backwards compatibility is preserved thanks to require_once().
* Introduce $wgInvalidateCacheOnLocalSettingsChange, which when set, causes $wgCacheEpoch to be updated in the way that it previously was in the default LocalSettings.php.
* Don't set $wgLocalInterwiki to some nonsense value (possibly including spaces and punctuation in the new installer). It should be only for actual interwiki prefixes. Since most wikis don't have them, I set this to false by default and adjusted the referring code to accept this.
* Removed the guard for web invocation with $wgCommandLineMode set. This ancient code is redundant with modern protections in doMaintenance.php.
* In DefaultSettings.php, fixed fold terminator placement near $wgLoadScript
* Add a web entry point guard. That's one piece of code which really is necessary.
* This is not complete yet, and should not be used outside of testing. Using it on a production database may ruin everything. This is the reason for the second entry point of new-index.php. You've been warned.
* Known issues are at [[mw:New-installer_issues]]. Please add new items to the list if you find them.
* (bug 2658) Don't use the TZ environment variable at all. Setting it throws an error in some restricted setups. But using it in PHP 5.1+ doesn't make sense anyway, since you'll get the E_STRICT notice described above whenever PHP tries to access it, because Derick hates environment variables. Use date_default_timezone_set().
* If $wgLocaltimezone is null, use the server's timezone as the default for signatures. This was always the behaviour documented in DefaultSettings.php but has not been the actual behaviour for some time: instead, UTC was used by default.
* Reverted HttpFunctions.php to r45549 and renamed wgSyncHTTPTimeout back to wgHTTPTimeout
* Edited out the asynchronous features from UploadFromUrl. Made fetchFile() use the curlCopy() function from new-upload r47811 instead of Http::doDownload(). Wrote my own URL validity check to avoid having to use either of the two buggy precedents.
* Removed UploadFromChunk
* Removed chunk upload and background status from ApiUpload.php
* Reverted r54669, use of addScriptClass()
* Left getHeadScripts() in its current location (OutputPage) instead of moving it back to SkinTemplate, just added wikibits.js to it to replace the removed addCoreScripts2Top()
* put a @ in front of get_headers() should hopefully avoid errors where allow_url_fopen=0
* combined $wgPhpCliPath into the similar used $wgPhpCli var
* minor js & example file mwEmbed fixes
* Remove all $wgAllowRealName, check $wgHiddenPrefs instead
* Make $wgAllowUserSkin obsolete too, check $wgHiddenPrefs instead
* And also only call globals if really needed, and remove unused globals
This is a global search and replace of NS_IMAGE and NS_IMAGE_TALK with NS_FILE and NS_FILE_TALK respectively in all core files, excluding those already updated in step 1 (r44004).
* Switch from running fix_magic_quotes() on $_COOKIE and $_GET/$_POST to running it on $this->cookies and $this->data. Should keep us from interfering with other programs that might do the same (and/or trying to start up a second WebRequest object). This partially fixes bug 11558.
* Todo: Do similar things with $_SERVER/$_ENV and switch to a lazy-load style, rather than on every new WebRequest.
I don't really like this in general; the API isn't meant for the UI and there should be little to no call to link to it from body content.
Additionally, I believe we're trying to move all new parser functions to the convention of using the # prefix to avoid conflict with the template namespace.
* $wgCookiePrefix:
** Shared stuff should always come before local stuff when setting the cookie prefix (by my count, if you set $wgSharedDB and $wgDBprefix with the old order, even though your usertable is shared, your cookies would be local and logins wouldn't be shared right.
** Because the user table isn't always shared anymore, we only want shared code when $wgSharedTables has 'user' set inside of it.
** We now have $wgSharedPrefix, this should also be accounted for in the cookie prefix.
* updaders.inc: The logic for the $doUser test has changed since the conditions that the user table is shared has changed. Now when $shared is true we only want to $doUser when we have a shared database and 'user' is being shared, otherwise if $shared is false, we only want to $doUser when there is no shared database, or 'user' is not being shared.
Check MediaWiki.org's $wgSharedDB documentation for those on 1.12, I'll post a link there to a patch I maintain for 1.12.
* Wrote a tool to check the integrity of the autoloader class list, fixed some issues that came up.
* Start the autoloader before LocalSettings.php, so that when an extension writer thinks an inefficient one-file special page extension is the way to go, they don't have to use explicit includes to make the class inheritance work. Should continue to work with $IP set in LocalSettings.php as long as $IP is set before extensions are included.
* Allow configuration of the default limit and days links with the variables $wgRCLinkLimits and $wgRCLinkDays.
* When selecting a limit and a days on the special pages, if you use a number not within the default list it will be added to the display.
** The selected limit and days is bolded. (This can be considered the first step for bug 3327)
* Optional other configuration option $wgRCFilterByAge, when enabled the list of days will be filtered so that only links within what $wgRCMaxAge says will be stored in the database will be displayed. Note that this is disabled by default because MediaWiki doesn't quite seam to trim out old entries as quickly as $wgRCMaxAge says it should be and some people appear to use the extra 30days links to display older entries even though $wgRCMaxAge is set to 7days on said wiki.
This should also solve bug 9257.
* Wrote two concrete implementations. LBFactory_Simple is for general installations. LBFactory_Multi will replace the runtime configuration used on Wikimedia and allow load-balanced connections to any DB.
* Ported Special:Userrights, CentralAuth and OAI audit to the LBFactory system.
* Added ForeignDBViaLBRepo, a file repository which uses LBFactory.
* Removed $wgLoadBalancer and $wgAlternateMaster
* Improved the query group concept to allow failover and lag control
* Improved getReaderIndex(), it will now try all servers before waiting, instead of waiting after each.
* Removed the $fail parameter to getConnection(), obsolete.
* Removed the useless force() function.
* Abstracted the replication position interface to allow for future non-MySQL support.
* Rearranged Database.php. Added a few debugging features.
* Removed ancient benet-specific hack from waitForSlave.php
* Made it possible to configure the parser class being used, via $wgParserConf.
* Moved defines from the top of Parser.php to either class constants or Defines.php
* Added Parser_DiffTest, a differential parser class for regression testing
* Added Parser_OldPP, a parser class which operates like the parser before this commit. I made one breaking change: a bugfix to avoid losing whitespace when adding MWTEMPLATESECTION markers.
* Made internal tidy work with PHP 5
* Added the ability to supply a hook for template fetching via ParserOptions. This is handy for testing.
* Updated parserTests.txt to account for the various breaking changes I made. Removed a few parser tests that no longer test for anything useful.
*Allow blocking of users to hide names
*Implement revision deletion for images/deleted files/deleted revs
*Log deletion set off for now
*Add 'hidden' file dir
*Dissallow merging via undelete (which was inefficient and hard to reverse)
*Use restore points and diffs to special:undelete
*Add a special page to merge pages
*Get changeslist to use tables to avoid ugly formatting
*Add logs into RC for rebuildrecentchanges.php
*Add private logs
*List private logs at specialpages
*Tweak/add some deletion and merge messages
* Ported file delete/restore to the filerepo framework. Some user-visible changes in error reporting.
* $wgSaveDeletedFiles has been removed, the feature is now enabled unconditionally. Added a "deleted" directory for the default location, protected by a .htaccess file and the practical obscurity of content hashes.
* Fixed bug 2735: "Preview" shown in title bar for action=submit on special pages
* Removed "restore" links from the deletion log embedded in Special:Undelete
* Added img_sha1/oi_sha1 fields, preserved through upload, delete and restore
* Referenced the new oi_metadata etc. fields to preserve metadata across upload and delete/restore.
* Rename 'licence' to 'license' for consistency with the rest of the code.
* The preview code was assuming simple templates with no parameters and no subst:s, which failed on most of the selections used now on Commons. Now doing a full pre-save transform and parse on {{$license}}, just as will be done on the final save.
* When selecting 'None' again after another option, the preview pane is now cleared.
A fun 'todo' might be to also pass the currently selected filename, if any, to the license preview. Some of the templates in use attempt to use the current-page-name variables to include a self-link. At the moment using a hardcoded 'Image:Sample.jpg' for the virtual title on the preview rendering.
* Added support for static member functions as AJAX callbacks.
* Moved all upload-related javascript to upload.js.
* Needs artwork, see TODO in upload.js.
* Removed UploadForm::showSuccess() as per wikitech-l discussion. Redirect to description page unconditionally.
* Added support for configuration of an arbitrary number of commons-style file repositories.
* Split Image.php into filerepo/File.php and filerepo/LocalFile.php
* Renamed Image::getImagePath() to File::getPath()
* Added initial support for timestamp-based file fetching (OldLocalFile), to be expanded upon by aaron.
* Changed the interface for Image/File object creation: use wfFindFile() or wfLocalFile() depending on semantics
* ImageGallery::add() now accepts a title object as the first parameter
* Moved file handling operations on upload from SpecialUpload to File
* Removed path-related functions from ImageFunctions.php. Removed static path accessors from File.
* Added a Content-Disposition header to thumb.php output
* Improved thumb.php error handling
* Updated the unit test suite to kind of partially work with modern computers. RunTests.php doesn't work just yet. Fixed an actual regression that the test suite detected -- moved some defines to Defines.php where they will be loaded consistently.
Cleaned up the new URL parsing code a bit, now able to recognize both $wgActionPaths and $wgVariantArticlePath and interpolate those variables.
Moved that bit into WebRequest::interpolateTitle() function which is called after $wgContLang stub object is created, so it can be used to get the variant list.
I'm not totally happy with all this code, but it works. The variant bits generally creep me out.
Caches for wikis with table prefixes will be lost on upgrade, caches for wikis without table prefixes will be preserved. Custom cache keys in extensions can be migrated at leisure. Extensions which write to core cache keys should be migrated ASAP, as I have done with Special:Makesysop.
* Made lines from initialiseMessages() appear as list items during installation
* Moved the bulk of the localisation data from the Language*.php files to the Messages*.php files. Deleted most of the Languages*.php files.
* Introduced "stub global" framework to provide deferred initialisation of core modules.
* Removed placeholder values for $wgTitle and $wgArticle, these variables will now be null during the initialisation process, until they are set by index.php or another entry point.
* Added DBA cache type, for BDB-style caches.
* Removed custom date format functions, replacing them with a format string in the style of PHP's date(). Used string identifiers instead of integer identifiers, in both the language files and user preferences. Migration should be transparent in most cases.
* Simplified the initialisation API for LoadBalancer objects.
* Removed the broken altencoding feature.
* Moved default user options and toggles from Language to User. Language objects are still able to define default preference overrides and extra user toggles, via a slightly different interface.
* Don't include the date option in the parser cache rendering hash unless $wgUseDynamicDates is enabled.
* Merged LanguageUtf8 with Language. Removed LanguageUtf8.php.
* Removed inclusion of language files from the bottom of Language.php. This is now consistently done from Language::factory().
* Add the name of the executing maintenance script to the debug log. Start the profiler during maintenance scripts.
* Added "serialized" directory, for storing precompiled data in serialized form.
* Made autoloader work for unserialize()
* Made XmlFunctions.php and HttpFunctions.php autoloadable modules, via Http:: and Xml::
* Made Image class autoloadable, global functions moved to ImageFunctions.php where they can be loaded on every invocation.
* Removed some unnecessary require_once() calls
* Deferred $wgValidSkinNames initialisation
* Fixed a couple of silly construct/initialise splits. My idea from C++ experience, bad practice in PHP.
* Deferred skin initialisation in ParserOptions
* Removed $wgMwRedir during an attempt to make MagicWord autoloadable. Didn't complete that, but removing the global is still the right direction.
* remove require_once() throughout whole code, yet left in few places
* move global functions in HttpUtils, ProxyTools, Credits to class methods
* php5 only: __autoload() now used, combined with class->file map and require()
* move initialization of $wgValidSkinNames to Skin::getSkinNames()
* few more changes that will surely break stuff.
* including code from DefaultSettings is a no-no
* no release-notes entries for major changes?
* not following code formatting standards
* serial version numbers probably not reliable
* HEAD is our production code; maybe try this separately first?
Can create/upgrade database tables for MediaWiki and extensions based on internal version management.
For HOWTO see the beginning of include/Upgrader.php
* allow specifying different profiler types
* add ProfilerSimple (that for now just builds in-memory profiling structure,
may be extended to write it somewhere)
