* For readability, rewrote ResourceLoaderFileModule::readScriptFiles() to use a loop instead of an excessively cute nested array_map() construction.
* In ResourceLoaderFileModule, check file_get_contents() result for errors. Golden rule of error checking: always check fopen(). Every call to fopen will fail some day for some user.
* In mediaWiki.loader.filter(): broke up a complex multi-line conditional into multiple commented if statements, for readability.
* Possessive "its" has no apostrophe.
* Modified Xml::encodeJsVar() to allow it to pass through JS expressions without encoding, using a special object.
* In ResourceLoader::makeModuleResponse(), renamed $messages to $messagesBlob to make it clear that it's JSON-encoded, not an array.
* Fixed MessageBlobStore to store {} for an empty message array instead of [].
* In ResourceLoader::makeMessageSetScript(), fixed call to non-existent function mediaWiki.msg.set.
* For security, changed the calling convention of makeMessageSetScript() and makeLoaderImplementScript() to require explicit object construction of XmlJsCode() before interpreting their input as JS code.
* Documented several ResourceLoader static functions.
* In ResourceLoaderWikiModule, for readability, reduced the indenting level by flipping some if blocks and adding continue statements.
* In makeCustomLoaderScript(), allow non-numeric $version. The only caller I can find is already sending a non-numeric $version, presumably it was broken. Luckily there aren't any loader scripts in existence, I had to make one to test it.
* wfGetDb -> wfGetDB
* Added an extra line break in the startup module output, for readability.
* In ResourceLoaderStartUpModule::getModuleRegistrations(), fixed another assignment expression
* Break long lines.
* Convert long or unnecessary ternary operator usages to if/else.
* Fixed excessively clever assignment expressions.
* Rename $cache to $cacheEntry.
* Removed unnecessary web invocation guards. Their perlish form was making me uncomfortable. BTW, unlike in Perl, die() is not a function, it's a special case in the PHP grammar which very roughly simulates the Perl syntax:
die "x"; // works
0 || die("x"); // works
0 || (die); // works
0 || (die "x"); // fail!
What actually happens here
* Add $localBasePath, $remoteBasePath params to the FileModule constructor, defaulting to $IP and $wgScriptPath respectively
* Add getLocalPath() and getRemotePath(), which use this information to build a proper FS or URL path for a file
* Make readScriptFiles() non-static so it can use these functions
* Run every single file path we use through either getLocalPath() or getRemotePath() as appropriate
** Except file dependencies, these are already prefixed. Our inability to give them special treatment caused bugs earlier
* Kill prefixFilePathList() and resolveFilePath(), no longer needed
