Apply most of the code tweaks from the live site:

Apply most of the code tweaks from the live site:
* use configured cache servers for mctest.php
* bucket details in mcc.php
* fix input validation and remove debugging code in compressOld
* full ID range for moveToExternal
* fix resolveStubs.php for compatibility with older serialized data
* maximum line length for bar graphs in getLagTimes.php
* recognize specieswiki in rebuildInterwiki.inc
* --purge option to do additional parser-cache purging for purgeList.php
* default changed in MiniDonation extension
* profile unicode cleanup in Xml
* log slow parses in Article.php
* profile wfMsgReal
* log mkdir failures
* profile AutoLoader
* rebuild empty DjVu metadata containing ''
* security fix for DjVu metadata retrieval