-* $wgShellLocale is now applied for all requests. wfInitShellLocale() is
- deprecated and a no-op, as it is no longer needed.
-* WikiPage::getParserOutput() will now throw an exception if passed
- ParserOptions would pollute the parser cache. Callers should use
- WikiPage::makeParserOptions() to create the ParserOptions object and only
- change options that affect the parser cache key.